Ergonomic design to keep your hand and arm in the normal hand stroke position, protects against the mouse arm, offers remarkable comfort and grip. ergonomic vertical mouse, optical USB mouse, the best choice when you work for a long time. 3200/2000/1200/800 DPI resolution of the optical sensors provide a higher sensitivity than normal optical mice, meet more different speed needs of the mouse. 6 buttons: 3D scroll wheel, DPI buttons, left and right mouse button, forward and back button provides the more convenient way to surf the Internet. 4 LED colors available. You can press the DPI button to change the LED color as you want. 1.8m / 5.9ft High Quality USB 2.0 Cable Product Dimensions: 120 x 63 x 75mm Product weight: 140 g. Compatible with Windows 7, 8, 10, Windows XP, Vista, ME, 2000 or latest system. 45 days money back and 18 months warranty, you can buy real power mouse without worry. Production Description Color Name: Mouse Wired Features The vertical, optical, ergonomic USB vertical mouse from offers high comfort and a whole new experience when surfing the Internet. Ergonomic design keeps your arm in a natural and relaxed position while working or studying on your PC, desktop, notebook, laptop or Mac. Made for people who work on the computer every day. A good choice in the office. 4 adjustable DPI levels 3200/2000/1200 / 800dpi 1.8 m / 5.9 ft high-quality USB 2.0 cable Exquisite 3D scroll wheel Plug & Play requires no driver Compatible with Windows 7, 8, 10, Windows XP, Vista, ME, 2000 and Mac OS, or the latest system Warranty 45 days money back and 18 months warranty 24 hours x 7 email support Box contents: 1 x vertical mouse. 1 x instructions.