DESCRIPTIONHP 200 Mouse - Radio Frequency - USB - Optical - 2 Button(s) - Red - Wireless - 1000 dpi - Scroll Wheel - SymmetricalThe symmetrical shape lets left as well as right handers use mouse with easeOptical LED for smoother movement and hassle-free performanceRadio Frequency wireless connectivity offers more freedom for people who want to control their Computers from a distance2-buttons scroll wheel provides convenient and easy navigationFeaturesWireless convenienceNo more wires with the reliable 2.4 GHz wireless connection.1Built to lastStrict HP standards and guidelines ensure long-lasting quality.Contoured comfortA contoured shape designed for all-day comfort in either hand.Good to goWith 2 AAA batteries included and no software to install you're good to go.Reliability you can count onRed LED technology and a 1,000 dpi optical sensor gives you exceptional accuracy and speed across a wide range of surfaces.