3. Bluetooth support protocol: A2DPV1.2, AVRCPV1.4, HSPV1.2 HFP1.6
4. Wireless frequency range: 2.402 GHz～2.483GHz
5. Modulation method: GFSK
6. Headphone power: 10W*2
7. Bluetooth distance: 10 meters
8. Audio frequency range: 20Hz～20KHz
9. Speaker: ￠8
12.Charging time: 1.5 hours
13. Charging voltage: DC 5V
14. Talk time: about 6 hours
15. Play time: about 5 hours
