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