Wired mouse features a three-button / scroll wheel setup that offers nearly silent clicking when you need to get work done & dont want to disturb anyone in a quiet environment. A high-definition optical sensor provides reliable & responsive control when youre navigating. The comfortable, contoured shaping feels great for either right-handed or left-handed users. It offers plug-and-play installation with a standard USB wired connection. Connector / Port / Interface: USB 2.0; Left / Right Hand Use: Left / Right; Mouse Technology: Optical; Wired / Wireless: Wired.