The Kensington Wired Valu Mouse features a three-button configuration and a high definition optical sensor for reliable and resposive control. It offers multi-use plug and play operation with a standard wired USB connection. The ergonomic shape provides a comfortable fit in either hand. The mouse is great value and is built to last with a limited lifetime warranty. High definition sensor provides smooth and sharp cursor control Scroll wheel with integrated third mouse button for easy browsing Sculpted ambidexterous body for all-day comfort 150cm wired USB cable for easy Plug & Play setup PC and Mac compatible Color Black Pack of 1