PERIMICE-713N is a mouse built with ergonomic principles to prevent or ease wrist and forearm strain. The natural handshake position promotes a more relaxed forearm position and uses fewer muscles to operate a mouse. Suitable for individuals with Repetitive Strain Injuries (RSI) and Carpal Tunnel Syndrome (CTS). Compatible with Windows 10/ 8/ 7/ Vista/ XP/ 2000, Linux, and Mac OS X (The two thumb buttons are not recognized on the Mac OS X. ) comfortable and classy: tired of using the traditional grip? Take a break from overly-clunky or uncomfortably tiny mice. The ergonomically-designed thumb rests and grips fit the contour of your palm for maximum comfort. Sleek and sexy: turn heads with a futuristic design. Made for increased functionality and comfort, This mouse combines a handshake grip with easy-access buttons and three levels of mouse sensitivity 1000(default)/1500/2000 DPI for improved tracking. Easy-access use: five buttons give you improved control over your computer's systems. Whether dragging and dropping, selecting large volumes of data, or casually gaming, This mouse provides a low-cost, effective solution for multiple computing needs.