1.Adopts optical orientation technology, high accuracy and reliability
2.Mini Size Design
3.With retractable cable
4.High resolution: 800 DPI
5.Button life: 3,000,000
6.Zoom in and zoom out function
7.No ball, no dirt, no cleaning
8.Working on any surface except glass and mirror
9.USB, Combo port available
10.Compatible with windows 2000/XP/9X/ME/NT4.0, windows vista