1. Bluetooth 5.1
2. IPX3 waterproof earphones can prevent sweat and rain
3. Smart touch, just click the multi-function button
4. It does make the master-slave switch easy and clean, and eliminates interruption
5. Intelligent noise isolation, clear face-to-face conversation
6. Operating range: 10m
7. Headphone capacity: 80mAh
8. Charging capacity: 1200mAh
9. Charging port: Micro-USB
10. Standby time: about 200-240 hours
11. Charging time: about 2h
12. Playing time: 18-24 hours (with charging box)