BUILT IN RECHARGEABLE BATTERY :: The AF transparent mouse features a built in high-performance rechargeable 400 mAh battery, providing an impressive 30 days of usage on a full charge. The automatic hibernation mode minimizes power consumption, effortlessly awakening with a simple button click. BATTERY LEVEL DISPLAY :: The Real Time 4 grid power display allows you to effortlessly monitor the battery levels during use. 4 ADJUSTABLE DPI :: Experience precise and swift tracking with our optical gaming mouse, featuring 4 adjustable DPI levels (800/1200/1600/2400). Suitable for all mouse mats, it ensures high sensitivity and accuracy for both office and gaming use. BOSS KEY :: Effortlessly switch to the desktop with a single click using the "Boss Key," enhancing office efficiency and ensuring privacy. (Not compatible with Mac OS) ERGONOMIC DESIGN :: This ultra-light mouse is designed to seamlessly fit the palm of your hand, ensuring a comfortable and effortless feel.