[. . . ] Ergo 525 provides an incredible 100x more sensitivity to surface detail - or tracking power - than an optical device, and the laser engine provides an astounding 6. 4 mega pixels per second (30-pixel by 30-pixel by 7080 frame rate equals 6. 4 mega pixels/sec). [. . . ] For you game geeks, we've included the most popular pad in the world ­ the QcK mouse pad. With Qck, the mouse is more speedy and stable especially when playing various games. When you come back to real life, you can adjust the resolution to 800 or 400 dpi to deal with your general paper work. The multimedia keys--previous/next song and volume up/volume down let you easily control music and game sound effects. [. . . ] The multimedia keys--previous/next song and volume up/volume down let you easily control music and game sound effects. [. . . ]