1. advanced optical technology
2. easy to setup and use
3. sensitive respond
4. convenient for surfing
5. human-engineering design, attractive appearance
6. available for both-hand use

Technical specification
1. high resolution: 1000 DPI
2. More than 6000000
3. intelligent save-power function
4. roller wheel operation
5. 3 button function

Windows 98/2000/XP,NT4.0, Me, Linux