5 Adjustable Dpi & 2 Polling Rate: DPI 800,1200,1600,2000,2400 can be easily changed. 2 level polling rates: 125Hz and 250Hz. USB Nano Receiver can be stored in the back of the mouse, allowing ease of storage when not used. No driver is required, just plug and play. Accurate & Lag-free Mouse: M652 mouse can not only provide a reliable wireless connection but also accurate tracking. Allowing you to move your gaming mouse freely without interference within 10m. More flexible for games or work. Long Life Span & Power Saving: It has passed the 5,000,000 times keystroke test to guarantee extra durability. This wireless mouse will be in sleep mode in 8 minutes of inactivity and wake up quickly by pressing any button. Powered by 1*AA battery (not included) and easy to be replaced. Ergonomic Design: Contoured shape keeps your hand comfortable even after long hours using. The led light design, makes your mouse look cooler, it can be turned off if you do not need it.