The Wired ValuMouse features a three-button/scroll wheel setup that offers silent clicking when you need to get work done and dont want to disturb anyone in a quiet environment. A high-definition optical sensor provides reliable and responsive control when youre 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 8.1 8 7 and Mac OS XSilent ClickSignificantly quieter than a standard mouse its ideal if you are using the device in a quiet environment such as a library or at a conference presentation and dont want to disturb others around you or interrupt your concentration1000 DPI SensorThe high-definition optical sensor tracks the mouses movements with smooth accuracy for optimal performance and productivityAmbidextrous DesignThe three button with scroll wheel setup gives both right-handed and left-handed users the freedom to get the most out of the mouse with contours that allows for pain-free and comfortable extended usagePlug & Play InstallationSimply insert the standard USB wired connector into your device and youll be up and scrolling quickly as the mouse driver will download and install automatically5-Year Limited WarrantyBuilt to last this could be the last mouse you ever have to buy and well replace or fix it if something goes wrong with it