quiet clicking is ideal for low-noise environments ambidextrous, contoured shape for either right-handed or left-handed users high-definition optical sensor (1000 dpi) for responsive control three button/scroll wheel design plug and play installation with a wired usb connection for reliable performance that doesn t require batteries built to last with a 5-year limited warranty compatible with windows 10, 8.1, 8, 7 and mac os x 10.6 and later best for: desktop pcs