Wired mouse features a three-button/scroll wheel setup with quiet clicking to prevent you from disturbing those around you in quiet environments. High-definition optical sensor (1000 DPI) tracks your movements with incredible accuracy for optimal performance and smooth navigation. Ambidextrous, contoured shape gives both right-handed and left-handed users the freedom to get the most out of the mouse with contours that allow pain-free and comfortable use. Reliable, wired USB connection offers plug-and-play installation that downloads and installs the driver automatically for quick, simple operation. Mouse is compatible with Windows 8.1, 8, 7 and Mac OS X.