DESCRIPTIONHP 200 Mouse - Radio Frequency - USB - Optical - 2 Button(s) - Black/Silver - 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 navigation