KEY SPECIFICATIONS/SPECIAL FEATURES: 3D OPTICAL MOUSE WITH 400DPI OR 800DPI RESOLUTION SPECIAL DESIGN FOR NOTEBOOK COMPUTER PRECISION OPTICAL SENSOR RUBBER COATING AND CHROMATED TREATMENT HOUSING MICR
KEY SPECIFICATIONS/SPECIAL FEATURES: 3D OPTICAL MOUSE WITH 800DPI RESOLUTION WORKS ON MOST SURFACES PRECISION OPTICAL SENSOR WINDOWS 95/98/SE/ME/2000/XP COMPATIBLE SCROLL WHEEL ALLOWS USERS TO SCROLL/