1. High quality compact design and measurable weight.
2. Feel comfortable mobile and stability.
3. Ergonomic shape special feel good.
4. Intelligent connectivity. no need to code plug & play.
5. Optical technology works on most surfaces.
6. USB cable is up to 1.5m long.
7. Most suitable for Laptop user and PC user. It is an essential equipment for gamers.
8. Black when not using can be changed to many colors: Red green blue magenta...