Wired Right Hand Vertical Mouse Ergonomic Gaming Mouse 1600 DPI Optical Mice Description brand . 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. for Optical Mouse andTrackball Mouse andMechanical Mouse $Vertical Mouse Previous and next page buttons for hi-speed web, files browsing and work flow, 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 and thumb rest and a full contour shape seamless for palm supporting, healthy and efficient. Specifications: Model Name: Wired Vertical Mouse Version:Right 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 or Right,Forward or Backward,Scroll Wheel Application:PC gamer,Desktop,Notebook,Laptop Mouse Pad Material:Fabric and 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 Right Wired Vertical Mouse