This USB Optical Mini Mouse 800 DPI MS-U3266 is an excellent tool for mobile professionals. The 800 dpi resolution offers twice the accuracy of standard mice, and is ideal for graphics and web designers who demand pinpoint accuracy. It is compact, lightweight, consumes little room in laptop carry-bags, works on most surfaces, and needs just inches for accurate movement. The included retractable USB cord helps avoid extra cable cluttering your workspace by adjusting to just the length you require. The ergonomic contour design offers comfortable use for hours; moreover, its greater 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.