The EW3151 Wireless Ergonomic Mouse with thumb scroll wheel is a good solution when spending much time on a computer. This wireless mouse is, unlike traditional mice, equipped with a thumb scroll wheel at the left side. Scroll easily on your screen by making only small movements with your thumb. Using this thumb scroll mouse reduces the risk of cramp in your fingers. Besides, the mouse has a soft and noiseless click that eliminates excess noise while working. The EW3151 Wireless Mouse has a high precision 1600 DPI optical sensor and on/off switch to extend the battery life. You will never want to use a traditional mouse anymore!