1. Adopts optical orientation technology, high accuracy and reliability
2. Ergonomics designed
3. Intelligent Internet function
4. High resolution: 800 DPI
5. Button life: 3, 000, 000
6. Zoom in and zoom out function
7. 3D function, multiple decoded
8. Working on any surface except glass and mirror
9. PS/2 or USB connector optional
10. Compatible with windows 2000/XP/9X/ME/NT4.0, windows vista