Features:_x000D_
2.4GHz digital wireless transmission,operation distance is up to 10 meters._x000D_
Built-in mouse memory,no recoding is needed after battery replacement. _x000D_
4-section design,the service life of one AA alkaline battery is up to six months._x000D_
Intelligent connectivity,no need to code,plug and play._x000D_
Ergonomically designed,comfort grip._x000D_
Many dormant class control and more power-saving hibernation connectionless._x000D_
800dpi/1600dpi.cursor speed adjustable._x000D_
Support OS Windows 2000/Me/XP/Vista/Win 7._x000D_
Power switch._x000D_
Low-voltage alarm function._x000D_
_x000D_
Technical Spec:_x000D_
RF carrier: 2402 MHz-2480 MHz. _x000D_
RF operation channel: 16,auto frequency hopping._x000D_
Rated operation current: 15mA@1.5V_x000D_
USB 2.0_x000D_
2* AAA batteries needed for mouse.(Not Included)_x000D_