USB 2.0 Compatible interface Operating systems Microsoft Windows 10, Windows 8.1, Windows 8, Windows RT 8.1, Windows RT 8 and Windows 7 Mac OS X v Android 3.2, 4.2 (limited functionality), 4.4, 5.0 Advanced functionality is not available on all devices or operating systems. Check the microsoft.com/hardware/compatibility information. Mouse Tracking System Optical Technology LED Inalambricant Frequency Frequency Range of 2.4 GHz Inalambricant Connection Scope 15 feet (5 meters) usually. Note: the RF range depends on many factors; for example, near metal objects or relative position between the mouse and the receiver. Buttons 3 buttons included wheel button Feeding 1 alkaline pile AA (included) Battery duration 6 months, usually Garantia 3 years