This USB Optical Mouse with 800 DPI is an excellent tool for professionals, especially those in the graphic design fields needing pinpoint accuracy. The 800 dpi resolution offers twice the accuracy of standard mice. It is stylish, lightweight, works on most surfaces, and needs just inches for accurate movement. The ergonomic contour design offers comfortable use for hours; moreover, its speed reduces excessive and potentially harmful arm movement. Equip with Plug-n-Play technology, just plug into the USB port and its works within seconds.