2.4 GHz 800~1600 DPI Wireless 6D Optical Mouse with USB Mini Receiver, Plug and Play, Working Distance up to 10 Meters (Blue)

1) 2.4 GHz digital wireless transmission provides up to 10 meters of operation. 2) 60 channel wireless frequencies prevents interference from other devices. 3) Small nano receiver. 4) Built-in memory saves the settings when batteries are replaced. 5) 800/1600 dpi adjustment for the speed of cursor. 6) Power switch. 7) 2 AAA alkaline batteries provide up to three months of battery life. 8) Low-voltage alert function. 9) Size: 11*6*3.5cm