1. 100% brand new and high quality Original.
2. Work: Optical interface type
3. USB Key number: 4+1(scroll wheel)
4. Optical Resolution: 1800DPI
5. Ergonomics: Supports
6. Mouse LED: Blue LED Light
7. System clock: 250HZ
8. Maximum acceleration: 20G
9. Ultra-precise Scroll Wheel
10. Ultra-quite and Low-friction
11. Resolution adjustable in driverless-free drive
13. Optical technology works on most surfaces