Added Next/Previous buttons for easier website navigation, best choice for web surfers, gamers and people who work long hours on computers. Hidden nano receiver taking up minimal space, the USB receiver plugs into the bottom slot of the mouse. Scientific ergonomic design promotes a neutral, wrist-healthy “handshake” position and arm for smoother movements and less fatigue. Optical sensor technology with 2400/1600/1200 DPI resolution offers more sensitivity than standard optical mice for smoother and more precise movements on a variety of surfaces. Compatible with all Versions of the operating system Windows, Mac OS X, Linux. " View More Details 【Plug and Play】 - Just plug the included USB receiver into your computer’s USB port, no additional drivers are needed. Note: The mouse will auto run for 10 minutes put to sleep when there is no movement.