Wireless mouse is very small. It is easy to put in a laptop bag, perfect for travelling. The nano receiver can be stored on the back of the mouse when not in use. Two modes: (BT 5.1 + 2.4G Wireless), you can use the mouse on two computers, one of which is connected via Bluetooth and the other via the USB interface to make your life easier. The two buttons are specially designed to be clicked silently. You don't have to worry about disturbing others. You can focus on libraries, offices, lounges, cafeterias and other public places. 10 m working distance, 2.4 GHz wireless connection, 3 adjustable DPI levels (800-1,-1600 DPI), so you can freely control the speed of your mouse. Rechargeable design: our rechargeable mouse has a built-in battery that can be charged via a USB cable. The superior auto-sleep technology ensures a long battery life. Features of the mouse: Fully charged in about 3-4 hours. Has a lithium battery with large capacity. It can be used for approx 30 days on a single charge. Rechargeable designOur rechargeable mouse has a built-in battery that can be charged via a USB cable. The superior automatic sleep technology guarantees a long battery life. How to use it: 2.4G single-mode method of use:First remove the receiver and plug it into the USB port of the computer (the receiver is usually under the mouse. in the cabin). After hearing the ringing, turn the switch to ON to use it. How to use the dual Bluetooth mode:Set the switch under the mouse to Bluetooth and the blue light on the scroll wheel flashes. Then connect to a computer, tablet or mobile phone.