Trust MaxTrack Mouse; USB; Wired; BlueTrack; 1000 DPI; USB port. Windows 7; Vista or XP. Intel-based Mac with Mac OS X 10.5 (Leopard) or higher.; Windows 7; Vista; XP Mac OS X 10.5 +- Comfortable; full size 6 button mouse with 1000 dpi high precision BlueSpot technology- Accurate and high precision BlueSpot sensor that works on virtually all surfaces like wood; granit; carpet; black; white etc.- Special button to switch sensitivity for normal (500 dpi) and high speed (1000 dpi) movement- Ergonomic design with comfortable rubber inlay for a firm grip- Side buttons for easy Internet exploring (page back/forward) and gaming- Just plug and go; no need to install a driver.