2.4GHz wireless technology. With 2.4GHz/8 channel wireless technology and a Nano receiver. Three levels of sensitivity for switching dpi. The mouse is equipped with three levels of sensitivity that is adjustable in 800, 1300 and 1600dpi. Easy installation and setup. With ergonomic design that is easy to operate. Built-in 600mAh rechargeable Li-ion battery. The mouse is with built-in 600mAh rechargeable Li-ion battery, and 100cm MicroUSB cable is included. Sleep mode for power saving. The mouse will activate sleep mode for power saving after inactive for 60 seconds.