Advanced ergonomic design with thumb scoop encourages natural hand and wrist postures. Mouse angle and height are designed to place wrist in a comfortable position. MicrosofTrack Technology in the mouse gives you precise control on virtually any surface. Windows button for one-touch access to the Start Menu. Navigation made simple Sculpt Ergonomic Mouse perfectly integrates with Windows. Simply click the Windows button for one-touch to access to the Start Menu. View larger BlueTrack Technology Take advantage of BlueTrack Technology, which combines the power of optical with the precision of laser for remarkable tracking on virtually any surface*. Streamlined curves maximize comfort The advanced design of Sculpt Ergonomic Mouse maximizes wrist comfort while making navigation effortless. Shaped to encourage a more natural hand, wrist, and forearm posture, Sculpt Ergonomic Mouse helps prevent the pain of repetitive stress injuries. Interface USB 2.0 Compatible Transceiver version Microsoft 2.4 GHz Transceiver v9.0 Operating systems Microsoft Windows 10, Windows 8.1, Windows 8, Windows RT 8.1, Windows RT 8, and Windows 7, Macintosh OS X v10.7-10.9 , Android 3.2 and 4.2 Wireless range 10 feet (3 meters) typical. Note: RF range is affected by many factors, such as nearby metallic objects and relative positioning of the mouse and receiver. Wireless platform Proprietary 2.4 GHz Battery type and quantity 2 AA alkaline batteries (included) Battery life Up to 12 months Legal Disclaimers *BlueTrack Technology does not work on clear glass or mirrored surfaces.