The Wired Valu Mouse features a three-button/scroll wheel setup that offers silent clicking when you need to get work done and don\'t want to disturb anyone in a quiet environment. A high-definition optical sensor provides reliable and responsive control when you\'re navigating and the comfortable, contoured shaping feels great for either right-handed or left-handed users. It offers Plug & Play installation with a standard USB wired connection and is built to last with a 5-year limited warranty. Silent clicking for quiet environments or when you need to stay focused to be productive Ambidextrous, contoured shape for either right-handed or left-handed users High-definition optical sensor (1000 DPI) for responsive control Three Button/Scroll Wheel setup Plug & Play installation with reliable, wired USB connection Built to last with a 5-year limited warranty Compatible with Windows(R) 8. 1, 8, 7 and Mac OS X