1.Black and silver mouse 2.3-button design 3.Scroll wheel acts as third button 4.800 dpi resolution 5.256 changeable links Ids 6.Precise optical technology 7.USB mini receiver 8.Smart Power Management for power saving Up to 3 m/9.84 ft operating distance (5 m/16 ft maximum without direct interference) Runs on two AAA batteries (included)