Rechargeable & Auto Sleep Function: Built-in high quality rechargeable battery means you can charge whenever you want. When you leave your mouse more than 5 minutes, it will automatically enter sleep mode, which will save mouse electricity, and click any button to wake up the mouse again PS Please charge for 1 hour when the mouse is new before use. Easy to Use: Stable connection up to 10 meters working distance. The simple USB wireless mouse, just plug and play, very easy to use. Quiet Clicking and ScrollingLeft and right button quiet click laptop mouse fits public mouse use circumstances like library, dormitory, office, etc. on, and apart from the blue light indication while charging and turns off after fully charged, this design is worry-free to disturb others Ergonomic DesignErgonomic and comfortable claw grip design, no fatigue after long-term work and study. A unique look shows off your unique style. Aluminum Alloy BaseThe aluminum alloy base is scratch resistant and has a good feel.