1. 2.4GHz wireless technology, long-distance connection above 20m
2. USB receiver, plug and play, compatible with mainstream systems in the market
3. Mute button, do not disturb others
4. Memory body feel, anti-slip and sweat-proof, comfortable to use
5. Water transfer technology pattern, fashionable, is a beautiful landscape of the desk
6. Optical IC: 3180C (without light) (new 8650)
7. Encoder: Fengshi 300,000 times
8. Return rate: R500
9. Power supply mode: rechargeable battery
10. Key switch: mute 3 million times
