1. The optical engine guarantees the accuracy of the operation accurate positioning and quick response ensuring your demand for various games.
2. Matte texture feel good.

Specification:
1. Working mode: Photoelectric.
2. Number of buttons: 3.
3. Roller direction: Four-way wheel.
4. Interface: USB.
5. Connection method: Wired.
6. Ergonomics: Yes.
7. Bare weight: 150g.
8. Size: 12x6.8x2.8.