Sweex Wireless Mouse Rambutan Silver. Device interface: RF Wireless, Movement detection technology: Optical, Movement resolution: 2000 DPI. Frequency band: 2.4 GHz, Wireless range: 10 m. Battery technology: Alkaline, Battery type: AAA, Battery life (max): 250 h. Mouse weight: 54 g. Compatible operating systems: Microsoft Windows XP, Windows Vista, Windows 7 Apple Mac OSX, Mouse dimensions (WxDxH): 54 x 95 x 36 mm