Wireless bluetooth headset $ 20.30 Bluetooth support protocol: A2DPV1.2, AVRCPV1.4, HSPV1.2 HFP1.6 Wireless frequency range: 2.402 GHz2.483GHz Modulation method: GFSK Headphone power: 10W*2 Bluetooth distance: 10 meters Audio frequency range: 20Hz20KHz Speaker: 8 Charging time: 1.5 hours Charging voltage: DC 5V Talk time: about 6 hours Play time: about 5 hours
