RECHARGEABLE & AUTO SLEEP FUNCTION: Built-in high-quality rechargeable battery for convenient daily use and long battery life. If the wireless mouse is left idle for over 5 minutes, it automatically enters sleep mode to conserve power. Simply click any key to wake the mouse. (P.S. Please charge the new mouse for 1 hour before use). PLUG AND PLAY CONNECTION: Wireless mice are truly plug and play. Insert the receiver into a USB port on your computer, and you're ready to go. No pairing or software downloads are required. COMFORTABLE & PORTABLE: The mouse's ergonomic shape contours to your hand for hours of comfortable use. ALUMINUM ALLOY BASE: The aluminum alloy base is resistant to scratches and color changes. This wireless mouse is a pleasure to use. Its unique appearance showcases your individual style, making it a suitable gift for parents, friends, lovers, and family. QUIET CLICK & SCROLL: Features silent click buttons for easy operation. The portable mouse is ideal for use in public places like libraries, dorms, and offices. The indicator light turns on when charging and off when fully charged. This design ensures worry-free use without disturbing others.