rechargeable wireless mouse silence r600 ? unlimited freedom with wireless. 2.4ghz wireless technology 10 meters of effective working distance. ? delicate, compact, comfortable and quiet. mouse buttons with silence switch, quiet and efficient work. ? adjustable resolution. three levels of adjustable dpi(1000/1200/1600) to meet different users. ? high efficiency and energy-saving. built-in large-capacity rechargeable battery (14500 can be used continuously for many weeks on a single charge. when there is no operation, it will automatically sleep, smart and save power. *unlimited freedom with wireless -2.4ghz wireless technology 10 meters effective working distance * delicate, compact, comfortable and quiet -mouse button with silence switch, quiet and efficient work *adjustable resolution -three levels adjustable dpi(1000/1200/1600) to meet different user *high efficiency and energy saving - built-in large capacity rechargeable battery (14500) can be used continously for many weeks on a single charge. when there is no operation, it will automatically sleep, smart and save power