Description:

1)       Color: All kinds of injection or rubber coated colors available 
2)       3 Buttons
3)       800DPI optical sensor technology for precise movement
4)       USB ,PS/2 and U+P Combo ports available
5)       Key-Press Life: over 1,000,000 times
6)       Can work on any surface except glass
7)       Compatible with Windows95/98/NT/ME/2000/XP/Vista
8)       Fit for your left hand and right hand 
9)       Packaging : Blister, color box or white box