The Pro Click v1.6 is an infrared computer sporting a 1600 dpi engine. Specifically marketed towards the professional fields of graphical design and such, the Pro Click also serves as an excellent mouse for gamers. The Pro Click feautures seven buttons that are easy to reach and fully programmable with the included drivers. The included drivers also feature On-the-Fly sensitivity adjustment allowing you to change the mouse sensitivity by holding your programmed button and using the scroll wheel. The mouse has a nice grip to it and is very precise. The teflon feet on the bottom of the mouse allows you to move the mouse freely and makes motion very smooth. If you are switching to this 1600 dpi mouse from a low sensitivity mouse, it may take a few days for you to get used to this product. At this time, I experienced a few aches in my hand. However, after about 3 days, I was completely adjusted to it and the mouse felt smooth and comfortable. The mouse is also ambidextrous allowing use for left handers as well. I highly recommed this mouse if you are a gamer or graphical designer and are in need of a more precise but cheap mouse.