PROGRAMMABLE BUTTONS - This SANWA ergonomic trackball mouse also has a forward/back function. Besides, it is programmable for different functions. Download SANWA Trackball mouse software to customize your mouse buttons and increase work efficiency.
Note: 1. The software does not work with Mac OS or Chrome OS. 2. Programmable function works when the software on.
NOISELESS BUTTON - The noiseless button is mounted on the left and right clicks. Suitable for late-night PC operation, operation in quiet places such as public places, library, hospital or meetings.