Wireless silent mechanical optical mouse with a built-in 600mAh large-capacity rechargeable battery for extended life. It can be used for a month on a full charge. Features a popular D.Va cartoon style, 7-color backlight, matte material, excellent grip, lightweight and durable design, in line with ergonomic principles. Energy and electricity saving. Enters standby mode when idle. Standby current is 0.4mA. Stops for 15 seconds without entering sleep mode. Sleep current is 0.08mA. Wakes up 0.1 seconds after touch, works immediately. Dynamic DPI Switching: 4 adjustable DPI switches: 2400, 1600, 1200, 800 allow you to freely control your speed. No additional driver is needed. Simply turn on the switch at the bottom of the mouse and insert the receiver into the USB port of your computer. Plug and play, optical engine for more stable and accurate movement. Wireless transmission range is up to 10 meters.