Acteck AM-420RF SILVER - MOIN-002. Device interface: RF Wireless, Movement detection technology: Optical, Movement resolution: 800 DPI. Frequency band: 2.4 GHz, Wireless range: 8 m. Battery technology: Alkaline, Battery type: AAA. Compatible operating systems: Windows 98, 2000, ME, XP, VISTA, 7 Mac OS, Mouse dimensions (WxDxH): 56 x 92 x 27 mm, Receiver dimensions (WxDxH): 19 x 14 x 6 mm