Added Next/Previous buttons for easier navigation of web pages, best choice for internet users, gamers and people who work long hours on the computer. Hidden nano-receiver takes up minimal space, USB receiver is plugged into the bottom slot of the mouse. Scientific ergonomic design promotes a healthy neutral “handshake” position for the wrist and neck arm for smoother movement and less fatigue. 800/1600/1200 DPI resolution optical sensor technology provides more sensitivity than standard optical mice for smoother, more precise movement over a wide range range of surfaces. Compatible with all versions of Windows OS, Mac OS X, Linux. > View more details 【Plug and Play】- Simply plug the included USB receiver into your computer’s USB port, no additional driver needed.