Wireless mouse with optical sensor and silent clicks and scroll. The mouse is a so-called Silent mouse, and has almost silent left and right clicks. In addition to the reduced sound level, the mouse gives a much more pleasant feeling when used. The mouse is equipped with a rechargeable battery of 600 mAh which makes it easy to charge when needed. It is also equipped with a switchable LED battery indicator to see when the battery starts to run out. If you think the LED light is noisy, you can turn it off on the button on the bottom of the mouse.