Genuine Rapoo 3710 2.4GHz Wireless 800/1600DPI USB Laser Mouse with Receiver - Black (2 x AAA)
Color: Black - USB 1.1 interface - 2.4GHz wireless technology - Carrier frequency: 2402~2480MHz - Resolution: 800/1600 DPI - Working range: 10 meters - Working voltage: 3V - Support Windows XP/Vista/7 - USB receiver included - Powered by 2 x AAA batteries (included) - Comes with Chinese user manual