Wireless mouse is perfect when you need a comfortable mouse without the clutter. The three-button/scroll wheel setup offers silent clicking when you need to get work done and don't want to disturb anyone. A high-definition optical sensor provides reliable and responsive control when you're navigating. Comfortable, contoured shaping feels great for either right-handed or left-handed users. High-definition optical sensor (1000 dpi) offers highly responsive control. Plug-and-play installation with a nano USB receiver allows virtually immediate use. Low-battery indicator conveniently warns you when the power is low to prevent unexpected battery depletion. Mouse is compatible with Windows 8.1,8, 7 and Mac OS X operating systems.