Compliant model: M-IT10DR/E01D
Trackball
① Left button
To left click on your PC.
② Right button
To right click on your PC.
③ Wheel
Rotate forward and backward or click like a button to operate your PC.
④ “Back” button
Performs the “Back” function on the Web browser.
⑤ “Forward” button
Performs the “Forward” function on the Web browser.
You will need to install the “ELECOM Mouse Assistant Mac version” from our website to use the “Back” and “Forward” button on Mac. Refer to “Install ELECOM Mouse Assistant”.
⑥ LED light
⑦ Power switch
Turn the trackball power ON and OFF.
⑧ Ball (36mm)
Rotate using your fingertips to move the cursor.
Separately sold ball
⑨ Support parts (synthetic ruby)
Support the ball.
Support parts are consumables. Compatible support parts can be purchased separately to replace existing support parts.
Optional Parts
⑩ Optical sensor (under the ball)
This sensor will detect the trackball’s movements when you move the trackball.
⑪ Ball removal hole
Push the ball out from here to clean the support parts in the housing.
* See "How to clean the trackball" for details.
⑫ Receiver unit storage compartment
The receiver unit can be stored here when the trackball is not in use.
⑬ Battery cover
Remove this cover and insert the battery.
⑭ Battery storage compartment
Holds the battery.
⑮ Battery removal sheet
Used to remove the battery from the battery storage compartment.
⑯ Battery insulating tab
Remove this tab before using.
Receiver unit
⑰ USB connector (male)
Connects to the PC USB-A port
Removal tool
* See "How to replace support parts" for details.
1. Turn the power ON
1) Remove the battery cover.
2) Remove the battery insulating tab.
3) Put the battery cover back on.
4) Remove the receiver unit.
5) Slide the power switch to the ON position.
The light around the wheel lights up red.
* When the battery level is running low, the LED light will blink slowly for a period of time.
Power-saving mode
When the trackball is left untouched for a fixed period of time while the power is ON, it automatically shifts to power-saving mode.
Moving the trackball restores it from energy saving mode.
* For two to three seconds after restoring from energy saving mode, trackball operation may be unstable.
Replacing the battery...
1) Remove the battery cover.
2) Remove the battery.
Pull the battery removal sheet to remove the battery.
3) Insert the battery according to the positive (+) and negative (-) marks indicated in the battery compartment.
Insert the battery in the correct positive (+) and negative (-) polarity direction.
4) Put the battery cover back on.
2. Connect to a PC
1) Start up your PC.
Please wait until your PC has started up and can be operated.
2) Insert the receiver unit into the PC's USB-A port.
You may use any USB-A port.
When removing the receiver unit
This product supports hot plugging. The receiver unit can be removed while the PC is on.
3) The driver is automatically installed and the trackball can be used.
You can now use the trackball.
By downloading and installing the "ELECOM Mouse Assistant" from our company website, functions such as button assignment function and presentation mode can be used. Please proceed to “Install ELECOM Mouse Assistant”.
Change 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
1) Click on “Start” on the bottom of the screen and click on “Settings”.
The “Settings” page will appear.
2) Click on “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, select “Devices” → “Mouse”, then click “Additional mouse options” under “Related Settings”.
2) Select the “Pointer Options” tab.
3) Adjust the “Select a pointer speed” slider bar to adjust the mouse pointer movement speed.
Change the number of lines scrolled in one wheel turn
■ For Windows 11
1) Click on “Start” on the bottom of the screen and click on “Settings”.
The “Settings” page will appear.
2) Click on “Bluetooth & devices” and then “Mouse”.
3) Adjust the “Lines to scroll at a time” slider bar to adjust the number of lines per scroll.
■ For Windows 10
1) Open “Mouse” properties.
From the start menu, click the Settings icon, select “Devices” → “Mouse”, then click “Additional mouse options” under “Related Settings”.
2) Select the “Wheel” tab.
3) Change the value of “The following number of lines at a time” under “Roll the wheel one notch to scroll”
1. Turn the power ON
1) Remove the battery cover.
2) Remove the battery insulating tab.
3) Put the battery cover back on.
4) Remove the receiver unit.
5) Slide the power switch to the ON position.
The light around the wheel lights up red.
* When the battery level is running low, the LED light will blink slowly for a period of time.
Power-saving mode
When the trackball is left untouched for a fixed period of time while the power is ON, it automatically shifts to power-saving mode.
Moving the trackball restores it from energy saving mode.
* For two to three seconds after restoring from energy saving mode, trackball operation may be unstable.
Replacing the battery...
1) Remove the battery cover.
2) Remove the battery.
Pull the battery removal sheet to remove the battery.
3) Insert the battery according to the positive (+) and negative (-) marks indicated in the battery compartment.
Insert the battery in the correct positive (+) and negative (-) polarity direction.
4) Put the battery cover back on.
2. Connect to a PC
1) Start up your PC.
Please wait until your PC has started up and can be operated.
2) Insert the receiver unit into the PC's USB-A port.
You may use any USB-A port.
When removing the receiver unit
This product supports hot plugging. The receiver unit can be removed while the PC is on.
3) The driver is automatically installed and the trackball can be used.
You can now use the trackball.
By downloading and installing the "ELECOM Mouse Assistant" from our company website, functions such as button assignment function and presentation mode can be used. Please proceed to “Install ELECOM Mouse Assistant”.
Change 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 will load up.
2) Adjust the “Tracking speed” slider to adjust the speed of the mouse pointer.
Unchecking “Natural scrolling” will cause the scroll direction to be reversed.
1. Turn the power ON
1) Remove the battery cover.
2) Remove the battery insulating tab.
3) Put the battery cover back on.
4) Remove the receiver unit.
5) Slide the power switch to the ON position.
The light around the wheel lights up red.
* When the battery level is running low, the LED light will blink slowly for a period of time.
Power-saving mode
When the trackball is left untouched for a fixed period of time while the power is ON, it automatically shifts to power-saving mode.
Moving the trackball restores it from energy saving mode.
* For two to three seconds after restoring from energy saving mode, trackball operation may be unstable.
Replacing the battery...
1) Remove the battery cover.
2) Remove the battery.
Pull the battery removal sheet to remove the battery.
3) Insert the battery according to the positive (+) and negative (-) marks indicated in the battery compartment.
Insert the battery in the correct positive (+) and negative (-) polarity direction.
4) Put the battery cover back on.
2. Connect to a PC
1) Start up your PC.
Please wait until your PC has started up and can be operated.
2) Insert the receiver unit into the PC's USB-A port.
You may use any USB-A port.
When removing the receiver unit
This product supports hot plugging. The receiver unit can be removed while the PC is on.
3) The driver is automatically installed and the trackball can be used.
You can now use the trackball.
Change 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 on the battery icon at the bottom right.
2) Click on 
(settings) on the Quick Settings panel.
The settings page will appear.
3) Click on “Mouse and touchpad” under “Device”.
4) Adjust the “Mouse speed” slider to adjust the speed of the mouse pointer.
1) Use a finger (or a pen) to push the ball out from the under side.
2) Use a cotton bud or something similar to clean off the dust accumulated on the contact surfaces of the three support parts.
When cleaning around the optical sensor, take care not to damage the sensor.
3) Gently wipe off the dirt on the ball with a tissue.
Do not use alcohol, cleaning cloths and other such cleaning tools when cleaning the ball.
Cleaning will remove the pre-applied coat of oil on the ball's surface and cause the ball to function poorly.
4) Insert the ball into the trackball housing.
Inadequate oil on the surface of the ball may cause the ball to function poorly.
If the ball seems to function poorly, rub it in your hand for around 30 seconds.
The oil from your hand will improve how the ball functions.
When replacing the support parts, take care not to damage the sensor.
1) Use a finger (or a pen) to push the ball out from the under side.
2) Hold onto the included removal tool with your fingers and push it into the notch on the sides of the support part until you hear a click.
3) Pull the removal tool hard to remove the support part.
4) Fit the replacement support part into the inner catch.
5) Press the support part in with your finger until you hear a click.
6) Insert the ball into the trackball housing.
Try the following if the trackball operates abnormally.
① Check that the trackball is turned ON.
② Check that the battery is inserted correctly or that the battery is not depleted.
* Turning off the power when the trackball is not used for a long period of time can extend the battery life.
③ Change the usage distance between your PC and the trackball.
Average radio wave range
Non-magnetic surface (such as wooden desks): approximately 10 m
Magnetic surface (such as steel desks): approximately 3 m
* These values were obtained in ELECOM's test environment and are not guaranteed. The 2.4 GHz band signal may be shorter depending on the environment you use it in.
④ Please reboot the PC.
⑤ Please update your PC’s OS to the latest version.
⑥ Please change the connection of the receiver unit.
Depending on the specifications of the PC's USB port or USB hub, other USB 3.0 devices used simultaneously with the trackball may generate noise that can worsen the 2.4 GHz signal in the vicinity.
Examples of USB devices that may degrade the 2.4 GHz band signal
You may be able to improve the situation with the following method.
Connect the trackball receiver unit to another USB port away from other USB 3.0 devices that are simultaneously in use.
Connect the trackball receiver unit to a USB 2.0 USB hub or extension cable.
⑦ Check the energy saver settings on the connected device. (When using Windows® PC)
On Windows, in order to reduce power consumption depending on the PC, the power of the USB-connected product is set to turn off automatically.
You can change the settings in the following ways:
For Windows 11
1) Click the “Start” button at the bottom of the screen.
2) Click ”All apps”.
3) Click ”Windows Tools”.
The ”Windows Tools” screen will appear.
4) Double-click ”Control Panel”.
5) Click ”System and Security”.
6) Click ”Power Options”.
7) Click "Change plan settings" to the right of the item selected in "Power Plan".
8) On the ”Edit Plan Settings” screen, click “Change advanced power settings”.
9) On the ”Power Options” screen, click the ”+” mark in ”USB settings” from the list, and then click the ”+” mark in ”USB selective suspend setting”.
10) In the drop box next to ”Setting”, select ”Disabled”.
If you are using a laptop, there are two items instead of “Settings”: “On battery” and “Plugged in”. In that case, please set the “Plugged in” setting to “Disabled”.
11) Click "OK" to confirm the settings.
12) Click the “×” (close) in the upper right corner to close “Edit Plan Settings”.
1) Right-click the Start button at the bottom left of the screen, click “Power Options”, and then click “Additional power settings” under “Related settings” on the right side of the “Power & sleep” screen.
2) Click “Change plan settings” on the right side of the item selected in “Power Plan”.
3) On the “Edit Plan Settings” screen, click “Change advanced power settings”.
4) On the “Power Options” screen, click the “+” mark in “USB settings” from the list, and then click the “+” mark in “USB selective suspend setting”.
5) In the drop box next to “Setting”, select “Disabled”.
If you are using a laptop, there are two items instead of “Settings”: “On battery” and “Plugged in”. In that case, please set the “Plugged in” setting to “Disabled”.
6) Click “OK” to confirm the settings.
7) Click the “×” (close) in the upper right corner to close “Edit Plan Settings”.
