Wireless Mouse
M-MY50MBS series
User Manual

Compliant model: M-MY50MBS, E01H

Precautions

This manual describes the important precautions you should take for safe operation of this product.
Observe these precautions carefully to avoid personal injury, damage, fire, and other problems.

Meaning of symbols

WARNING

Failure to observe precautions carries the possibility of serious personal injury or death due to fire, electric shock, or other causes.

CAUTION

Failure to observe precautions may result in personal injury due to electric shock or other causes and may damage other equipment.

Prohibited action

Mandatory action

Situation that needs attention

Notes and reference information

WARNING

If a foreign object (water, metal chips) enters this product, stop using it immediately and remove the battery.
Continuing to use the product as it is may cause a fire or an electric shock.

If abnormalities such as overheating, emitting smoke, or strange odors occur, stop using the product immediately and disconnect it from the connected device. Also, after confirming that there is no heat generation, remove the battery from this product while being careful to avoid burns. Afterward, contact your dealer.
Continuing to use the product as it is may cause a fire or an electric shock.

Do not drop or hit this product.
In the event that the product is damaged, cease usage immediately. Turn off the power and remove the battery. Afterward, contact your dealer.

Continuing to use the product while it is damaged may cause a fire or an electric shock.

Do not attempt to disassemble, modify, or repair this product or the receiver.
Doing so may cause a fire, electric shock, or product damage.
Such malfunctions are not covered under warranty.

Do not put this product on fire.
Breakage may cause fire or injury.

Do not insert or pull out the receiver with wet hands.
It can cause fire or electric shock.

The receiver presents a swallowing hazard for children, so be sure to store it in a place out of the reach of children.

CAUTION

Do not place this product in any of the following environments:

  • In a car exposed to sunlight or a place exposed to direct sunlight.
  • In a place that becomes hot, such as around a heater.
  • In a moist place or a place where condensation may occur.
  • In an uneven place or a place exposed to vibration.
  • In a place where a magnetic field is generated (such as near a magnet).
  • In a dusty place.

This product does not have a waterproof structure. Use or store in a place not exposed to liquids such as water.
Any liquid, such as rain, water spray, juice, coffee, steam, and sweat, can cause this product to breakdown.

  • Only use this mouse with PCs, smartphones, tablets, and video game systems.
  • Do not use this product with any device that may be significantly affected in the case of this product malfunctioning.
  • If this product is used on a transparent surface such as glass or a highly reflective surface such as a mirror, the optical sensor will not function correctly, and the mouse cursor movement will become unstable.
  • Note that looking directly into the sensor light may hurt your eyes.
  • When you no longer need to use this product and the battery, be sure to dispose of them in accordance with the local ordinances and laws of your area.

Battery

CAUTION

Use either an AA alkaline battery, an AA manganese battery, or an AA nickel-metal hydride rechargeable battery.

When not using this product for long periods of time, remove the battery.
Not removing the battery may cause leakage or malfunction.

Cleaning the product

If this product becomes dirty, wipe it with a soft, dry cloth.

Using a volatile liquid such as paint thinner, benzene, or alcohol can affect the material quality and/or discolor this product.

Take caution regarding the following for disinfection.

Gently soak a cleaning cloth, such as a microfiber cloth, in the disinfectant solution. Ensure there are no loose droplets and gently wipe the product using the cloth.
After wiping, dry thoroughly and wipe off any residual liquid.

* Do not spray any liquid onto the product directly. Doing so can cause electric malfunctions.

IMPORTANT

Do not spray any liquid onto the product directly.
Doing so can cause electric malfunctions.

Do not use organic solvents or expose the product to ultraviolet light.
Using these can cause damage to the exterior such as the deterioration of the housing components or paint.

Using disposable gloves is recommended.

When using any alcohol-based product, check its associated precautions and that it is appropriate for the specific purpose.

Be sure to turn off any connected devices.

* Turn off connected devices even if they are in sleep or hibernation mode.

* Unplug the AC adapter and power cable from the outlet.

  • Note that the customer is fully responsible for repair costs in the event that the product is damaged or operates abnormally due to the disinfection process.
  • It is recommended that you sanitize your hands before and after using PCs and peripherals that are used by multiple people to prevent the spread of infection through the equipment.

Cautions for wireless equipment

This product is a wireless device that can use the entire 2.4 GHz band and is able to avoid the mobile entity identification device range. GFSK is adopted as the radio modulation, and the interference distance is 10 m (32.81 ft). The 2.4 GHz band is also used in medical devices, Bluetooth®, and wireless LAN devices of the IEEE 802.11b/11g/11n standards.

  • Before using this product, check that there are no “other radio stations”* operating nearby.
  • If electromagnetic interference occurs between this product and “other radio stations”*, use this product in another location or stop using this product.

* The term “other radio stations” refers to industrial, scientific, and medical devices using the 2.4 GHz band, the same as this product, other radio stations of this type, licensed on-premises radio stations for mobile object identification used in factory production lines, specified low-power radio stations for which a license is not required, and amateur radio stations.

WARNING

  • Do not use with any equipment that may be significantly affected in the case of this product malfunctioning. There are rare cases in which an external radio wave at the same frequency, or the radio wave emitted from a mobile phone, causes this product to malfunction, slow down, or fail to operate.
  • Do not use this product in places where use of radio waves is prohibited, such as hospitals. Radio waves of this product may affect electronic devices and medical devices (for example pacemakers).
  • Due to the possibility of hindering the safe navigation of aircraft, the use of a wireless mouse on aircraft is prohibited by the Civil Aeronautics Act. Turn off the power of the wireless mouse before boarding and do not use it after boarding.

* ELECOM is not liable for any accidents or any indirect or consequential damage incurred due to the failure of this product.

How to use

Items included in this package

The following items are included in this package. Verify the package to ensure all items are accounted for prior to using this product. While every effort has been made to ensure proper packaging, in the event that any shortage or damage is discovered, contact the retailer where the product was purchased.

  • Mouse x 1
  • Receiver x 1
  • AA alkaline battery for operation check x 1
  • The battery is already installed into the mouse. Remove the battery insulating tab before use.

  • Quick Start Guide x 1

Name and function of each part

Mouse

Left button

To left-click on your PC.

Right button

To right-click on your PC.

Fast smart scroll and horizontal scroll

Rotate the wheel forward and backward or click it like a button to operate your PC.

  • Click the wheel, and it works as the middle button (wheel button).
  • The scroll mode automatically switches between line-by-line scroll and fast smart scroll depending on the speed of the revolution.

  • You can scroll horizontally by tilting the wheel to the left or right.

  • You will need to install “ELECOM Mouse Assistant 6” from our website to use the horizontal scrolling function on Windows. Refer to “Install ELECOM Mouse Assistant 6”.

“Back” button

To perform the “Back” function on the Web browser.

“Forward” button

To perform the “Forward” function on the Web browser.

You will need to install “ELECOM Mouse Assistant 6” from our website to use the “Back” and “Forward” buttons on Mac. Refer to “Install ELECOM Mouse Assistant 6”.

Function button

You can assign a function to this button. By default, no function is assigned.

You will need to install “ELECOM Mouse Assistant 6” from our website to assign a function to this button. Refer to “Install ELECOM Mouse Assistant 6”.

Connected device switching button

  • Use this button to switch between connected devices.
    The default setting is 2.4 GHz wireless connection .
    Refer to “Switching the connected device”.
  • You can also use this button to pair this product with your PC’s Bluetooth module or Bluetooth adapter.
    When Bluetooth connection or is active, press and hold this button for three seconds to enter pairing mode.

Connected device light

  • The connected device light selected by the connected device switching button operates.
  • This light flashes when the product is waiting for pairing.
  • When the power is turned on, this light turns on for a certain period of time.
  • This light flashes when the battery level is low during use.

Bluetooth connection or : Blue
2.4 GHz wireless connection : White

Battery cover

Remove this cover to insert a battery.

Battery compartment

This compartment holds the battery.

Receiver storage compartment

The receiver can be stored here when 2.4 GHz wireless connection is not used.

Battery insulating tab

Remove this tab before use.

Power switch

Use this switch to turn the mouse on and off.

Optical sensor

This sensor illuminates in blue when the mouse is turned on.
This sensor detects mouse movements when you move the mouse.

* Note that looking directly into the sensor light may hurt your eyes.

Receiver

USB-A plug

Use this plug to connect to the PC’s USB-A port.

Switching the connected device

This product can be used by switching between two Bluetooth devices and one 2.4 GHz wireless connection.
Change the device connection as follows.

1) Press the connected device switching button to change the connection.
The connected device light operates in blue when the connected device is or , and in white when is selected.
and are Bluetooth connections, and is 2.4 GHz wireless connection.

If the mouse is not paired with either or during Bluetooth connection, the current connection will be lost if the device is switched to the unpaired one.
Switching back to the current connection resumes the connection.

For details on the pairing procedure, refer to “How to use” -> “Connecting and setting up the mouse” -> (for each OS) -> “3. Pair with a PC”.

Connecting and setting up the mouse

Windows®

Using Bluetooth connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Pair with a PC.

  • Pairing involves registering Bluetooth devices (in this case, this product and your PC) with each other and authorizing a connection between them.
  • This section covers Windows standard Bluetooth functions. Depending on your device or Bluetooth adaptor, unique Bluetooth functions may be used. In that case, read the instruction manual for each.
  • Use the mouse or touchpad that you have been using to operate the PC until the pairing is complete.
  • Screenshots of Windows 11 (25H2) are used in the instructions below. Please note that the actual screens may be different depending on your OS version or device.

When using Swift Pair

This product supports Swift Pair. If you are using a PC or Bluetooth dongle that supports Swift Pair, setting the mouse to pairing mode allows it to quickly pair with the PC.

1) Use the connected device switching button to select or .

  • For details on selecting the connected device, refer to “Switching the connected device”.
  • The currently paired Bluetooth device will be registered to the connected device selected here.

When there is no device that can be connected, such as when the mouse is initially started or after a reset

The mouse enters pairing mode, and the connected device light flashes blue rapidly.
Proceed to Step 3.

2) Press the connected device switching button for three seconds and release it.

The mouse enters pairing mode, and the connected device light flashes blue rapidly.

3) When the screen below appears in the lower-right corner, click “Connect”.

If the above screen does not appear, check whether Swift Pair notifications are enabled. For more details, refer to “Turning on Swift Pair notifications”.

4) When “OSMOD 8 connected” is displayed, pairing is complete.

The connected device light on the top turns on for three seconds and then turns off.

You can now use the mouse.

● Turning on Swift Pair notifications

If Swift Pair does not work even after entering pairing mode, enable the Swift Pair notification by following the steps below.

1) Right-click “Start” at the bottom of the screen and then click “Settings”.

The “Settings” screen appears.

2) Click “Bluetooth & devices” and then click “View more devices”.

3) Click “Show notifications to connect using Swift Pair” to turn it on.

You are now able to use Swift Pair.

If “Show notifications to connect using Swift Pair” does not appear, your PC or Bluetooth dongle does not support Swift Pair. In that case, pair the device from the Settings screen. For details, refer to “■ When pairing from the Settings screen”.

When pairing from the Settings screen

1) Right-click “Start” at the bottom of the screen and then click “Settings”.

The “Settings” screen appears.

2) On the “Home” page, click “Add device” in the “Bluetooth devices” tile.

The “Add a device” screen appears.

If “Bluetooth” is off, turn it on.

3) Click “Bluetooth”.

4) When the “Add a device” screen appears, use the connected device switching button to select or .

  • For details on selecting the connected device, refer to “Switching the connected device”.
  • The currently paired Bluetooth device will be registered to the connected device selected here.

When there is no device that can be connected, such as when the mouse is initially started or after a reset

The mouse enters pairing mode, and the connected device light flashes blue rapidly. Proceed to Step 6.

5) Press the connected device switching button for three seconds and release it.

The mouse enters pairing mode, and the connected device light flashes blue rapidly.

6) Click “OSMOD 8”.

Pairing begins.

7) When the message changes to “Your device is ready to go!”, click “Done”.

8) Pairing is complete when this product is added to the “Bluetooth devices” tile and the status is “Connected”.

The connected device light turns on for three seconds and then turns off.

You can now use the mouse.

By downloading and installing “ELECOM Mouse Assistant 6” from our website, you can use features such as assigning functions, assigning keyboard commands, assigning gesture functions to the buttons, and switching profiles. Proceed to “Install ELECOM Mouse Assistant 6”.

Using 2.4 GHz wireless connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Connect to a PC.

1) Start up your PC.

Wait until the PC has started up and can be operated.

2) Use the connected device switching button to select .

The connected device light turns on white for three seconds.

For details on selecting the connected device, refer to “Switching the connected device”.

3) Insert the receiver into the PC’s USB-A port.

You may use any USB-A port.

  • Ensure that the connector is correctly oriented in the correct port.
  • If you feel strong resistance when inserting, check the shape and orientation of the connector. Forcibly inserting the connector may damage the connector, and there is a risk of injury.
  • Do not touch the terminal of the USB connector.

When removing the receiver

This product supports hot plugging. You can remove the receiver even when the PC is running.

4) The driver will be automatically installed, and you will then be able to use the mouse.

You can now use the mouse.

By downloading and installing “ELECOM Mouse Assistant 6” from our website, you can use features such as assigning functions, assigning keyboard commands, assigning gesture functions to the buttons, and switching profiles. Proceed to “Install ELECOM Mouse Assistant 6”.

Changing the mouse pointer speed

Adjust the mouse pointer movement speed on your PC if the mouse pointer moves too fast or too slow.

■ For Windows 11

* Windows 11 Pro screens are used in the following explanation. The display may be different from other operating systems such as Windows 11 Home.

1) Right-click “Start” at the bottom of the screen and then click “Settings”.

The “Settings” page appears.

2) Click “Bluetooth & devices” and then “Mouse”.

3) Adjust the “Mouse pointer speed” slider bar to adjust the mouse pointer movement speed.

■ For Windows 10

1) Open “Mouse” properties.

From the start menu, click the Settings icon, and click “Devices” -> “Mouse”.

2) Click “Mouse” in the left menu.

3) Adjust the “Cursor speed” slider bar to adjust the mouse pointer movement speed.

Changing the number of lines scrolled per wheel notch

■ For Windows 11

* Windows 11 Pro screens are used in the following explanation. The display may be different from other operating systems such as Windows 11 Home.

1) Right-click “Start” at the bottom of the screen and then click “Settings”.

The “Settings” page appears.

2) Click “Bluetooth & devices” and then “Mouse”.

3) Adjust the “Lines to scroll at a time” slider bar to adjust the number of lines scrolled.

■ For Windows 10

1) Open “Mouse” properties.

From the start menu, click the Settings icon, and click “Devices” -> “Mouse”.

2) Click “Mouse” in the left menu.

3) Adjust the “Choose how many lines to scroll each time” slider bar to adjust the number of lines to scroll per notch of the wheel.

Changing the scroll direction (Windows 11 only)

* Windows 11 Pro screens are used in the following explanation. The display may be different from other operating systems such as Windows 11 Home.

Change the scroll direction for when the scroll wheel on the mouse is moved.

1) Right-click “Start” at the bottom of the screen and then click “Settings”.

The “Settings” page appears.

2) Click “Bluetooth & devices” and then “Mouse”.

3) Use “Scrolling direction” to change the scroll direction.

Select “Down motion scrolls up” to reverse the scroll direction when the scroll wheel is moved.

Mac

Using Bluetooth connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Pair with a PC.

  • Pairing involves registering Bluetooth devices (in this case, this product and your PC) with each other and authorizing a connection between them.
  • This section covers macOS standard Bluetooth functions. Depending on your device or Bluetooth adaptor, unique Bluetooth functions may be used. In that case, read the instruction manual for each.
  • Use the mouse or touchpad that you have been using to operate the PC until the pairing is complete.
  • Screenshots of macOS Tahoe (26) are used in the instructions below. Please note that the actual screens may be different depending on your OS version or device.

1) From the Apple menu, click “System Settings...”.

The “System Settings” screen appears.

2) Click “Bluetooth” to turn on “Bluetooth”.

The “Bluetooth” settings screen appears.

3) Use the connected device switching button to select or .

  • For details on selecting the connected device, refer to “Switching the connected device”.
  • The currently paired Bluetooth device will be registered to the connected device selected here.

When there is no device that can be connected, such as when the mouse is initially started or after a reset

The mouse enters pairing mode, and the connected device light flashes blue rapidly. Proceed to Step 5.

4) While searching for devices, press the connected device switching button for three seconds and release it.

The mouse enters pairing mode, and the connected device light flashes blue rapidly.

5) When “OSMOD 8” is detected under “Nearby Devices”, click “Connect”.

Pairing begins.

6) When “OSMOD 8” changes to “Connected”, pairing is complete.

The connected device light turns on for three seconds and then turns off.

You can now use the mouse.

By downloading and installing “ELECOM Mouse Assistant 6” from our website, the button assignment functions and presentation mode can be used. Proceed to “Install ELECOM Mouse Assistant 6”.

Using 2.4 GHz wireless connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Connect to a PC.

1) Start up your PC.

Wait until the PC has started up and can be operated.

2) Use the connected device switching button to select .

The connected device light turns on white for three seconds.

For details on selecting the connected device, refer to “Switching the connected device”.

3) Insert the receiver into the PC’s USB-A port.

You may use any USB-A port.

  • For devices that do not have a USB-A port, such as MacBook, use a USB Type-C® hub or the like.

  • Ensure that the connector is correctly oriented in the correct port.
  • If you feel strong resistance when inserting, check the shape and orientation of the connector. Forcibly inserting the connector may damage the connector, and there is a risk of injury.
  • Do not touch the terminal of the USB connector.

When removing the receiver

This product supports hot plugging. You can remove the receiver even when the PC is running.

4) The driver will be automatically installed, and you will then be able to use the mouse.

You can now use the mouse.

By downloading and installing “ELECOM Mouse Assistant 6” from our website, the button assignment functions and presentation mode can be used. Proceed to “Install ELECOM Mouse Assistant 6”.

Changing the mouse pointer speed

Adjust the mouse pointer movement speed on your PC if the mouse pointer moves too fast or too slow.

1) Click “Mouse” under “System Settings”.

The “Mouse” settings page loads.

2) Adjust the “Tracking speed” slider to adjust the mouse pointer speed.

Changing the scroll direction

Change the scroll direction for when the scroll wheel on the mouse is moved.

1) Click “Mouse” under “System Settings”.

The “Mouse” settings page loads.

2) Clicking “Natural scrolling” to turn it on or off will change the scroll direction.

When “Natural scrolling” is turned off, the scroll direction will be the same as the direction of the wheel movement.

iPhone, iPad

Using Bluetooth connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Pair with an iPad or iPhone.

  • Pairing involves registering Bluetooth devices (in this case, this product and an iPad or iPhone) with each other and authorizing a connection between them.
  • Tap to operate the iPad or iPhone device until pairing is complete.
  • Screenshots of iPadOS 26 are used in the instructions below. Please note that the actual screens may be different depending on your OS version or device.

1) Tap “Settings” from the Home screen.

2) Tap “Bluetooth” to turn on “Bluetooth”.

3) Use the connected device switching button to select or .

  • For details on selecting the connected device, refer to “Switching the connected device”.
  • The currently paired Bluetooth device will be registered to the connected device selected here.

When there is no device that can be connected, such as when the mouse is initially started or after a reset

The mouse enters pairing mode, and the connected device light flashes blue rapidly. Proceed to Step 5.

4) While searching for devices, press the connected device switching button for three seconds and release it.

The mouse enters pairing mode, and the connected device light flashes blue rapidly.

5) Tap “OSMOD 8” when it is detected under “Devices”.

Pairing begins.

6) When the “Bluetooth Pairing Request” screen loads, tap “Pair”.

7) You can use the mouse when the status shows “Connected”.

The connected device light turns on for three seconds and then turns off.

You can now use the mouse.

Registering custom actions to the buttons

Only the following two buttons and the wheel can be used by default.

  • Button 1 (left button): Single-tap
  • Button 2 (right button): Secondary click

Follow the steps below to assign all other button functions.

1. Turn on AssistiveTouch.

1) Tap “Accessibility” under “Settings”.

2) Tap “Touch” under “Physical and Motor”.

3) Tap “AssistiveTouch”.

4) Tap “AssistiveTouch” to turn it on.

2. Assign custom actions to the buttons.

1) Tap “Devices” under “Pointer Devices”.

2) Tap “OSMOD 8” under “Connected Devices”.

3) Tap “Customize Additional Buttons...”.

4) When the “Customize Button” screen loads, press a button on this product that you would like to add.

* When adding “Button 3 (wheel)”

5) A list of all assignable functions loads. Tap the desired function to assign.

* When assigning “Screenshot” to “Button 3”

6) The function has been assigned to the button. To assign a function to another button, repeat the steps above.

When AssistiveTouch is off, the custom action function is disabled and only the initial right-click, left-click, and scroll wheel functions may be used.

Changing the scroll direction

Change the scroll direction for when the scroll wheel on the mouse is moved.

1) Tap “General” under “Settings” from the Home screen.

2) Tap “Trackpad & Mouse”.

3) Tapping “Natural Scrolling” to turn it on or off will change the scroll direction.

When “Natural Scrolling” is turned off, the scroll direction will be the same as the direction of the wheel movement.

Android

Using Bluetooth connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Pair with an Android device.

  • Pairing involves registering Bluetooth devices (in this case, this product and an Android device) with each other and authorizing a connection between them.
  • Tap to operate the Android device until pairing is complete.
  • Screenshots of Pixel Tablet (Android 16) are used in the instructions below. Please note that the actual screens may be different depending on your OS version or device.

1) Tap “Settings” from the Home screen.

2) Tap “Connected devices”.

3) Tap “Pair new device”.

4) Use the connected device switching button to select or .

  • For details on selecting the connected device, refer to “Switching the connected device”.
  • The currently paired Bluetooth device will be registered to the connected device selected here.

When there is no device that can be connected, such as when the mouse is initially started or after a reset

The mouse enters pairing mode, and the connected device light flashes blue rapidly. Proceed to Step 6.

5) Press the connected device switching button for three seconds and release it.

The mouse enters pairing mode, and the connected device light flashes blue rapidly.

6) Tap “OSMOD 8” under “Available devices”.

7) Tap “Pair”.

Pairing begins.

8) Pairing is complete when this product is added to “Other devices”.

The connected device light turns on for three seconds and then turns off.

You can now use the mouse.

Chrome OS

Using Bluetooth connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Pair with a PC.

  • Pairing involves registering Bluetooth devices (in this case, this product and your PC) with each other and authorizing a connection between them.
  • This section covers Chrome OS standard Bluetooth functions. Depending on your device, unique Bluetooth functions may be used. In that case, read the instruction manual for each.
  • Use the mouse or touchpad that you have been using to operate the PC until the pairing is complete.
  • Screenshots of Chrome OS (143.0.7499.196) are used in the instructions below. Please note that the actual screens may be different depending on your OS version or device.

1) Click the task tray in the lower-right corner.

2) Click “Bluetooth” on the Quick Settings panel.

3) Under “Bluetooth”, click “Pair new device”.

4) Use the connected device switching button to select or .

  • For details on selecting the connected device, refer to “Switching the connected device”.
  • The currently paired Bluetooth device will be registered to the connected device selected here.

When there is no device that can be connected, such as when the mouse is initially started or after a reset

The mouse enters pairing mode, and the connected device light flashes blue rapidly. Proceed to Step 6.

5) While scanning for devices, press the connected device switching button for three seconds and release it.

The mouse enters pairing mode, and the connected device light flashes blue rapidly.

6) Click “OSMOD 8”.

Pairing begins.

7) “OSMOD 8 connected” will be displayed in the lower-right corner of the screen.

The connected device light turns on for three seconds and then turns off.

Click “Bluetooth” like in 2). Pairing is complete when “OSMOD 8” appears under “Currently connected”.

You can now use the mouse.

Using 2.4 GHz wireless connection

1. Remove the battery insulating tab.

1) Remove the battery cover.

2) Pull out the battery insulating tab slowly while holding the battery.

3) Put the battery cover back on.

When replacing the battery...

1) Remove the battery cover.

2) Remove the battery.

3) Insert a new battery as indicated on the bottom of the battery compartment.

Ensure that the battery is inserted with the positive (+) and negative (-) terminals oriented correctly.

4) Put the battery cover back on.

2. Turn the power on.

1) Slide the power switch on the bottom to the ON position.

The connected device light turns on for three seconds.

* When the battery level is low, the connected device light selected by the connected device switching button flashes for five seconds.

Power-saving mode

When the mouse is left untouched for a certain period of time while the power is on, it automatically enters power-saving mode.
The mouse returns from power-saving mode when it is moved.

* Mouse operation may be unstable for two to three seconds after returning from the power-saving mode.

3. Connect to a PC.

1) Start up your PC.

Wait until the PC has started up and can be operated.

2) Use the connected device switching button to select .

The connected device light turns on white for three seconds.

For details on selecting the connected device, refer to “Switching the connected device”.

3) Insert the receiver into the PC’s USB-A port.

You may use any USB-A port.

  • For devices that do not have a USB-A port, use a USB Type-C® hub or the like.

  • Ensure that the connector is correctly oriented in the correct port.
  • If you feel strong resistance when inserting, check the shape and orientation of the connector. Forcibly inserting the connector may damage the connector, and there is a risk of injury.
  • Do not touch the terminal of the USB connector.

When removing the receiver

This product supports hot plugging. You can remove the receiver even when the PC is running.

4) The driver will be automatically installed, and you will then be able to use the mouse.

You can now use the mouse.

Changing the mouse pointer speed

Adjust the mouse pointer movement speed on your PC if the mouse pointer moves too fast or too slow.

1) Click the task tray in the lower-right corner.

2) Click the gear icon (settings) on the Quick Settings panel.

The settings page appears.

3) Click “Mouse” under “Device”.

4) Adjust the mouse pointer speed using the “Cursor speed” slider for this product.

Changing the number of lines scrolled per wheel notch

1) Click the task tray in the lower-right corner.

2) Click the gear icon (settings) on the Quick Settings panel.

The settings page appears.

3) Click “Mouse” under “Device”.

4) If “Controlled scrolling” for this product is disabled, click to enable it.

5) Adjust the “Scrolling speed” slider bar for this product to adjust the number of lines scrolled.

Changing the scroll direction

Change the scroll direction for when the scroll wheel on the mouse is moved.

1) Click the task tray in the lower-right corner.

2) Click the gear icon (settings) on the Quick Settings panel.

The settings page appears.

3) Click “Mouse” under “Device”.

4) Click “Reverse scrolling” for this product to enable or disabled scrolling in the reverse direction.

The scroll direction is the reverse of the direction of the scroll wheel movement when “Reverse scrolling” is turned on.

Install ELECOM Mouse Assistant 6

To customize the settings and operations and use the function assignment function with this product, ELECOM Mouse Assistant 6 must be installed.

■ Get ELECOM Mouse Assistant 6

Visit our website below and download the latest version of the application.

Specifications

Connection method

USB 2.4 GHz wireless/Bluetooth® wireless

Connector type

Receiver: USB-A plug

Bluetooth® standard

Bluetooth Low Energy

Compatible models (USB)

USB-A port-equipped Windows, macOS, and ChromeOS devices

Compatible models (Bluetooth)

Windows, macOS, ChromeOS, iOS, iPadOS, and Android devices that support Bluetooth Low Energy

Supported OS

Windows 11/10, macOS Tahoe 26, iOS 26/iPad OS 26, ChromeOS, Android 16

Radio frequency

2.4GHz

Radio wave range

Up to approx. 10 m (32.81 ft)
* May vary depending on the operating environment.

Connection selection switching

Supported

Sensor type

BlueLED

Sensor resolution

1000 DPI

Number of buttons

8 *including wheel button and tilt wheel

Number of wheels

1

Receiver storage compartment

Supported

Power source

AA alkaline battery, AA manganese battery, or AA nickel-metal hydride rechargeable battery x 1

Battery life

Maximum duration: Approx. 1 year and 8 months (estimated duration when using an alkaline battery)
* May vary depending on the operating environment.

Size category

M size

External dimensions (main unit)

Approx. W 60 mm x D 101 mm x H 39 mm (W 2.37 x D 3.98 x H 1.54 in.)

External dimensions (receiver)

Approx. W 13 mm x D 19 mm x H 6 mm (W 0.52 x D 0.75 x H 0.24 in.)

Weight

Approx. 89 g (3.14 oz) (excluding battery)

Weight (receiver)

Approx. 2 g (0.08 oz)

Operating environment conditions

Temperature: 5 °C to 40 °C (41 °F to 104 °F) , humidity: Up to 90 %RH (without condensation)

Storage environment conditions

Temperature: -10 °C to 60 °C (14 °F to 140 °F) , humidity: Up to 90 %RH (without condensation)

Contents

Mouse x 1, Receiver x 1, AA alkaline battery for operation check x 1, Quick Start Guide x 1

Troubleshooting

When the mouse is not working properly

Try the following if the mouse operates abnormally.

Check that the power switch on the mouse is in the ON position.

Check that the battery is inserted correctly and that it is not empty.

  • Make sure that the positive and negative sides of the battery are oriented correctly.
  • The operation will become unstable when the battery level is low. Refer to “When replacing the battery... (e.g., when using Bluetooth connection on Windows )” and replace the battery with a new one as soon as possible.
    The alkaline battery provided with this product is only for operation check. The dry cell battery will discharge naturally during the distribution process of the product.

* Turning off the power when the mouse is not used for a long period of time can extend the battery life.

Check the Bluetooth connection.

  • Check that the Bluetooth function or the Bluetooth adapter on your PC is turned on.
  • Check pairing status to ensure that this product is paired correctly with your PC and that pairing has not been canceled.

Change the usage distance between your PC and the mouse.

This wireless device uses the 2.4 GHz band. Use the mouse within range of the PC.

Average radio wave range
Non-magnetic surface (such as wooden desks): approximately 10 m (32.81 ft)
Magnetic surface (such as steel desks): approximately 3 m (9.85 ft)

* These values were obtained in ELECOM’s test environment and are not guaranteed. It may be shorter depending on the status of the 2.4 GHz band radio waves in the usage environment.

Reboot the PC.

The mouse may become unstable depending on the condition of the PC. Restart the PC.

Update your PC’s OS to the latest version.

The mouse may become unstable when the OS version of the PC is old. Update your PC’s OS to the latest version.

Update the Bluetooth driver. (If you are using a Windows® PC)

The mouse may not work normally when the PC’s Bluetooth driver is not the latest version. Check the manufacturer of the Bluetooth function installed on your PC and update the driver.

1) Right-click “Start” and open “Device Manager”.

2) Click “Bluetooth”.

3) Check the manufacturer of the Bluetooth function installed on your PC.

The following steps illustrate the procedure when the Bluetooth function is manufactured by Intel® Corporation.
For other manufacturers or if you do not know the manufacturer, check the user manual of your PC or contact the manufacturer of your PC for instructions on how to update the Bluetooth driver.

4) Search for “Intel® Driver & Support Assistant” on your browser and download the installer from Intel’s website.

5) Follow the instructions of the downloaded installer to install “Intel® Driver & Support Assistant”.

6) Click “Start” and then “Other”.

7) Click “Intel Driver & Support Assistant”.

8) The Intel support page will automatically open on your browser and a list of drivers and software updates that can be used on your PC will be displayed.

9) Download “Intel® Wireless Bluetooth®” from the list if available.

* The display on your browser may change depending on your PC environment and support page updates.
Inquire with Intel for the latest information.

10) Follow the instructions of the downloaded installer to install the Bluetooth driver.
With this, the Bluetooth driver is updated.

When using the receiver or a USB-connected Bluetooth receiver, change the receiver connection.

Depending on the specifications of the PC’s USB port or USB hub, other USB 3.0 devices used simultaneously with the mouse may generate noise that can degrade the 2.4 GHz band signal in the vicinity.

Examples of USB devices that may degrade the 2.4 GHz band signal

  • USB memory stick
  • Hard disk or SSD
  • Optical disk drive
  • Card reader/writer
  • LAN adapter
  • Other devices communicating data with a PC via USB 3.0

You may be able to improve the situation with the following method.

Connect the mouse receiver or Bluetooth receiver to another USB port away from other USB 3.0 devices in use simultaneously.

Connect the mouse receiver or Bluetooth receiver to a USB 2.0 hub or to an extension cable.

Check power-saving settings for connected devices. (If you are using a Windows® PC)

On Windows, in order to reduce power consumption, depending on the PC, the power of the USB-connected products is set to turn off automatically. You can change the settings in the following ways:

For Windows 11

1) Right-click “Start” and open “Device Manager”.

2) Click “Human Interface Devices”.

3) Double click “USB Input Device”.

There may be several USB Input Devices listed. In this case, perform the following actions for all USB Input Devices.

4) On the “USB Input Device Properties” screen, click the “Power Management” tab.

5) Click “Allow the computer to turn off this device to save power” to remove the check mark.

6) Click “OK” to confirm the settings.

7)  Click “x” (close) in the upper-right corner to close “Device Manager”.

For Windows 10

1) Right-click “Start” and open “Device Manager”.

2) Click “Human Interface Devices”.

3) Double click “USB Input Device”.

There may be several USB Input Devices listed. In this case, perform the following actions for all USB Input Devices.

4) On the “USB Input Device Properties” screen, click the “Power Management” tab.

5) Click “Allow the computer to turn off this device to save power” to remove the check mark.

6) Click “OK” to confirm the settings.

7)  Click “x” (close) in the upper-right corner to close “Device Manager”.

Compliance status

Intellectual property rights

  • ELECOM CO., LTD. owns the copyright to this manual.
  • Unauthorized copying and/or reproducing of all or part of this manual is prohibited.
  • If you have any concerns or question regarding this manual, please contact the retailer from whom you purchased this product.
  • The images are for illustration purposes only and may differ from your actual product.
  • In order to make improvements to this product and for improved safety, the colors and specifications are subject to change without prior notice.
  • We shall bear no responsibility for any device failure or malfunction of other devices resulting from the use of this product.
  • When exporting this product, check the export regulations for the country of origin.
  • The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by ELECOM CO., LTD. is under license.
  • Windows is a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries.
  • macOS Tahoe and iPadOS are trademarks of Apple Inc., registered in the U.S. and other countries.
  • Chrome and Android are trademarks or registered trademarks of Google LLC.
  • USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
  • The company and product names on the packaging and the manual are, in general, trademarks or registered trademarks of their respective companies.

Support information