Description 100% brand new and high quality. Ergonomically designed, optical tracking technology, working on many different surfaces and ideal usage for home, office or game. Wired mouse, comfortable touch. Plug and 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 palm supporting, healthy and efficient. Specifications: Model Name: Wired Vertical Mouse Version:Right hand Design Color:Black Power supply:USB-powered computer Demension:123x75x62mmLxWxH Material:ABS Cable length:170cm Adjustable DPI:800-1200-1600-3200 Connection:USB Wired Buttons:Left/Right,Forward/Backward,Scroll Wheel Application:PC gamer,Desktop,Notebook,Laptop Mouse Pad Material:Fabric + Rubber System support: Windows 2000, Windows XP, Windows 7, Windows Vista, Windows 98, Mac OS, Windows ME, Windows 8 Package including: 1 x Right Wired Vertical Mouse