This USB Optical Mini Mouse 800 DPI 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 small, lightweight, consumes virtually no 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 the retractable cord to just the length you require. Furthermore, this compact mouse fits easily into a travel pouch for easy storage. Its optical technology provides precise tracking on almost any surface. Just plug into the USB port and its works within seconds. Features : Convenient Roller Button The Roller Button can be used for fast browsing up/down, left/right on the internet in Windows documents. as well as zooming in Microsoft Office and Internet Explorer. High precision optical sensor Sends 1,500 signals per second to digital signal processor to determine exact location, so it never needs a mouse ball like a traditional mouse. Plus it eliminates erratic cursor movement and dust accumulation. Specifications : Enhanced precision with optical engine Eliminates moving parts and dust accumulation Ergonomic design for high level comfort Comfortable fit for either hands and for long term use Advanced high precision optical sensor Optical sensor scans 1,500 times per second for pinpoint accuracy on almost any surface Multifunction wheel for scroll and zoom 800 DPI resolution Optical mechanical design for precise tracking Dual-purpose ergonomic design for comfortable desktop use yet small enough for the mobile user Optical sensor technology provides improved accuracy and precision movement Retractable USB cable provides cable management for ease of travel Requirements : Windows 98/98SE/2000/Me/XP/VISTA Package Includes : USB Optical Mouse 3ft USB Retractable Cable