The black Wireless Mouse for Life from Kensington is designed for users who not only need a mouse, but one that helps to reduce cord clutter. Plug-and-Play compatible with a 2.4 GHz USB nano receiver, its three-button/scroll wheel setup helps offer virtually silent clicking to help ensure that you don't disturb anyone when you need to complete work and be productive in quiet environments. A high-definition optical sensor also helps to provide reliable and responsive controls while navigating and the mouse's shaping helps it adapt to use by those who are right and left-handed. This wireless mouse is backed by a limited 5-year warranty.