[. . . ] [. . . ] With Qck, the mouse is more speedy and stable especially when playing various games. While you are playing games, you can switch the resolution of Ergo 525 to 2000 or 1600 dpi. Just press one button on Ergo 525, and you can get the highest speed (7080 frame rate) with the smoothest motion in your virtual world - shooting, fighting, flying or racing. When you come back to real life, you can adjust the resolution to 800 or 400 dpi to deal with your general paper work. [. . . ] [. . . ]