This sensor scans the surface beneath the mouse 1,500 times per second to accurately and crisply track the smallest motion. Mouse OEM Symetrical shape for lefties and righties, 3-Buttons. No scroll wheel. This is a great deal that you WON'T want to pass up. All for one low upgrade price.
Price includes keyboard and mouse.
Uses radio control technology. Mouse is the same as the cordless wheel mouse seen below and has scroll wheel. Finally freedom from the mouse cord. Nice ergonomic shape, not too big. Logitech Cordless MouseMan - Optical Cordless AND optical in a comfortable design.