Rechargeable with Auto-Sleep Function: Built-in high-quality rechargeable battery means you can charge it whenever you want. If the mouse is left for more than 5 minutes, it will automatically enter sleep mode to save power. Click any key to wake the mouse again. Easy to Use: Stable connection, working distance up to 10 meters. Simple USB wireless mouse, plug and play, very easy to use. Silent Clicking and Scrolling: The left and right mouse buttons are silent, suitable for using the mouse in public places such as libraries, dormitories, offices, etc. Besides the blue light indicator when charging and off when fully charged, this design means you don't have to worry about disturbing others. Ergonomic Design: Comfortable ergonomic grip design, long hours of work and study won't feel tiring. A unique look that expresses your unique style. Aluminum Alloy Base: The aluminum alloy base is scratch-resistant and feels great.