The Logitech^® B100 Optical USB Mouse is a comfortable plug-and-play mouse with an optical precision of about 800-dpi. It has three buttons for optical tracking. The low-profile shape of this wireless USB mouse feels good in either hand, even after a long day of work. Built by Logitech^®, this optical mouse features an ambidextrous design, enabling you to use it with your right or left hand. You'll enjoy smooth, precise cursor control that lets you edit documents and navigate the Internet more efficiently. It does not require any setup; you only have to plug it into the USB to use it right away.