Ultra slim and portable design: The wireless Bluetooth wireless portable mouse can be easily stored in your laptop bag or pocket so you have it wherever you need it. Two modes: Bluetooth 5.1 wireless mouse and 2.4G, provides more convenience for people who use a variety of devices. Automatic connection after switching, supports stable connection with a working distance of up to 10 meters. Adjustable sensitivity: 2.4G wireless transmission technology, it is possible to react and to control from the personal computer. 800/1200/1600 DPI resolution optical tracking technology provides smooth and precise tracking over a larger area than standard optical mice. Quiet Design: Quiet, optical USB wireless mouse, energy saving , energy saving and environmentally friendly, quiet, wonderful to read at any time. During the meeting, in the middle of the night, in a quiet place, such as a library, you can use it without worrying about disturbing others.