Rapoo 3100P 5.8GHz Wireless 1000DPI Optical Mouse with USB Receiver - Grey + Black (2 x AA)
Color: Grey + Black - Model: 3100P - 5.8GHz wireless transmission - Resolution: 1000DPI - Operating range: 10 meters - Supports Windows XP/Vista/Win 7/Mac OS X10.4 or later - Powered by 2 x AA batteries (included) - Comes with USB receiver & English manual