Wired Left Hand Vertical Mouse Ergonomic Gaming Mouse 1600 DPI Optical Mice Description and . Ergonomically designed, optical tracking technology, working on many different surfaces and for ideal usage for home, office or game. Wired mouse, comfortable for touch. Plug and for play mode, no need driver Human Design will make your wrist comfortable when using mouse. Perfect for Optical Mouse &Trackball Mouse &Mechanical Mouse $Vertical Mouse Previous and next page buttons for hi-speed web, files browsing and work flow, perfect for gaming enthusiast, programmer, office staff, teen Internet surfer and people who sit at length at computer. This vertical optical mouse is ergonomically designed to alleviate strain on wrists with cozy comfortable pinky finger & thumb rest and a full contour shape seamless for palm supporting, healthy and efficient. Specifications: Model Name: Wired Vertical Mouse Version:Left hand Design Color:Black Power supply:USB-powered computer Demension:123x75x23mm(LxWxH) Material:ABS Cable length:140cm Adjustable DPI:800-1200-1600 Connection:USB Wired Buttons:Left/Right,Forward/Backward,Scroll Wheel Application:PC gamer,Desktop,Notebook,Laptop Mouse Pad Material:Fabric + Rubber System support: for Windows 2000, for Windows XP, for Windows 7, for Windows Vista, for Windows 98, for Mac OS, for Windows ME, for Windows 8 Package included: 1 x Wired Vertical Mouse Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.