Easily adjust the sensitivity of your mouse with the dedicated built-in DPI button on your mouse. At the click of a button, alternate between 800, 1200, 1600 DPI. Providing convenience while browsing webpages. Great for gamers, internet surfers, and people who are consistently working on a computer. Ergonomic design encourages a neutral position for your wrist and arm. Prevents forearm twisting and reducing muscle strain compared to the traditional mouse. Power saving allows your mouse to last longer by putting yours into sleep mode. After 8 minutes of being idle, the mouse cuts power until the right or left button is pressed. If you are not absolutely 100% satisfied with your Ergonomic Mouse, let us know right away! We will do everything we can to make sure you are perfectly satisfied with your purchase. That's the PowerBear guarantee!