Rechargeable & Auto Sleep Function: Built-in high quality rechargeable battery, convenient for daily use. Long battery life. If the wireless mouse is left for more than 5 minutes, it will automatically enter sleep mode to save mouse power. Click any key to reactivate the mouse. (P.S. Please charge the new mouse for 1 hour before using). Instant Connection: Wireless mice are truly plug and play. Insert the receiver into a USB port on your computer and you can start using it. There's no need to pair the mouse or download any software to use it Comfortable and mobile:The shape of the mouse conforms to the shape of your hand for hours of play. comfortable use. Aluminum alloy base:The aluminum alloy base is not easy to scratch and change color. This wireless mouse is fun to use. Unique appearance shows your unique style, suitable as a gift for parents, friends, lovers, family. Quiet Clicking and Scrolling:Quiet click buttons, the laptop mouse will adapts to the environment of using the mouse in public places such as libraries, dormitories, offices, etc. The indicator light turns on when charging and turns off when fully charged. This design can be used with confidence without worrying about disturbing others.