Microsoft Wireless Mobile Mouse 3500 Key Features Mouse Tracking: BlueTrack Connections: RF Wireless Number of Buttons: 3 Scroll Wheel Type: Overview Keep moving with a transceiver that stays in your mobile PC when you go and a mouse that works on more surfaces with Microsoft BlueTrack Technology! BlueTrack Technology Microsoft BlueTrack Technology combines the power of optical with the precision of laser for remarkable tracking on virtually any surface.* Plug-And-Go Nano Transceiver Leave the Nano Transceiver plugged in when you�re on the go, or stow it in the mouse. 8-Month Battery Life Use your mouse without power interruption for up to 8 months on a single battery. Battery status indicator tells you when battery power is low. ON/OFF switch Conserve more battery power by turning your mouse off when not in use. Comfortable in Either Hand Use your mouse with your left or right hand�ambidextrous design makes it comfortable either way. - USB; - 1 AA Alkaline Batteries required (included). *BlueTrack Technology does not work on clear glass or mirrored surfaces. Mouse Scroll Yes Movement detection technology BlueTrack Buttons quantity 3 Device interface RF Wireless Input device Scroll Yes Movement detection technology BlueTrack Buttons quantity 3 Device interface RF Wireless Design Product colour Black, Grey Technical details Product colour Black, Grey Plug and Play Yes Harmonized System (HS) code 84716070 Ergonomics Plug and Play Yes Power Battery technology Alkaline Number of batteries supported 1 Battery type AA Software Mac operating systems supported No System requirements Mac operating systems supported No Weight & dimensions Width 57.1 mm Depth 95.4 mm Other features Compatible operating systems Windows 7, Windows Vista, Windows XP