Built-in high-quality rechargeable battery: When you leave the mouse for more than 5 minutes, it will automatically enter sleep mode to save the mouse power, and click any button to wake up the mouse again. Mute click: It is suitable for use in public places, such as libraries, dormitories, offices, etc. In addition to the blue light indicator when charging, the light will go out when fully charged. This design result does not need to worry about disturbing others. Portable design: This ultra-thin mouse can be easily stored in a laptop bag, which is very suitable for travel. The symmetrical design of this wireless mouse is suitable for right-handed or left-handed users (PS USB is stored at the mouse button). Three-mode connection: Bluetooth 5.0/3.0 and 2.4g USB connection. You can switch to any mode by clicking the mode switch button located at the bottom of the mouse. The indicator lights of Bluetooth 5.0, Bluetooth 3.0 and 2.4g USB are green, blue and red respectively. Once the Bluetooth pairing is completed or the USB is plugged in, you can freely switch between each mode, and the maximum operating distance of each mode is 10 meters. Easy to use: plug and play. The receiver is located in the battery compartment of the mouse. Take it out and insert it separately into the device port. No need for additional drivers or software to improve work efficiency and meet office needs