Rechargeable & Power Saving Includes a built-in rechargeable battery, charged via USB cable. The mouse automatically enters sleep mode after 1 minute of inactivity to save energy. Please Note 1. If the mouse responds slowly, charge it as the battery might be low. 2. The mouse enters sleep mode after 10 minutes of inactivity; click any button to wake it. 3. Charge for 2 hours before first use. The blue light indicates charging and turns off when fully charged. Dual-Mode ion Supports Bluetooth (Windows 8/10, Mac OS, iPad/iPhone with iOS 13+) and 2.4G wireless. Plug in the USB receiver for easy setup without extra software. RGB Backlight The mouse features RGB 7-color breathing lights, offering a cool visual effect, especially at night. The lights turn off in sleep mode to save power. 3-Level DPI & 6 Buttons Adjustable DPI (1600/1200/800) and 6 buttons for efficient work and gaming. Silent buttons ensure no disturbance while using.