ERGONOMIC DESIGN FOR ULTIMATE COMFORT -- Hours at the computer can leave your hand aching and result in carpal tunnel syndrome. Give yourself the gift of comfort and style with this thoughtfully designed ergonomic vertical mouse! Created with power-users in mind, the precision shaping is meant to relieve your wrist of pains and cramping, and features side grips, a thumb rest and strategically placed buttons. Upgrade your computing performance and experience the ultimate in comfort right now! HIGH-PRECISION MOUSE CONTROL -- If you're someone who likes having exact control over your mouse movements, you've just found your new best friend. Outfitted with an optical sensor of 2400 DPI, this ergonomic mouse tracks the finest of movements effortlessly. It carefully calculates weight, stability and control on almost any surface and can be adjusted between 4 resolutions of 1000DPI, 1600DPI, 2000DPI and 2400DPI depending on your needs! EASIER WEB BROWSING -- Get things done quicker with the wireless mouse, forget clicking the back button every time. With the built-in Next/Previous Page buttons, you won't even have to move your wrist, simply click once and you'll jump to the desired page. Long browsing sessions can wear down your hand, but thankfully this ergonomic wireless mouse reduces pressure on your wrist joint for painless navigation. WORK ANYWHERE WITH WIRELESS -- The last thing you need is yet another cord to get tangled in. Simply insert the USB receiver into your computer and you'e on your way. This wireless vertical mouse tracks every movement with its super-fast 2.4 GHz wireless connection, and never worry about delays or dropouts! Thanks to the wireless range of 49 feet, you can enjoy a clutter-free workspace and work from anywhere! WHISPER QUIET CLICK -- Hours of clicking sounds can be annoying to you or those around you. The advanced stability built into the wireless ergonomic mouse reduces the tip noise and improves responsiveness so you can make each click precise and inaudible. We beat the competition, offering not only the quiet left and the right click buttons, but also the soundless scroll wheel. Click and scrolling in peace with the iClever vertical mouse your ears and coworkers will thank you!