1. Bluetooth chip: Jerry
2. Bluetooth version: 5.0+ EDR
3. Bluetooth protocol: HFP, HSP, A2DP, AVRCP
4. Transmission distance: 10m
5. Battery capacity (charging warehouse)300MAH
6. Battery capacity (single headset) 20MAH
7. Music Playing time: ≦ 3.2h
8. Call time: ≦3H
9. Charging time: < 1.2h
10. Charging port: Micro USB
11. Trumpet: 14 li of genuine copper ring with glue
12. Horn impedance: 16 Euros
13. Waterproof rating: IPX5

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