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1.Bluetooth specification:V5.2
2.Bluetooth Profile:A2DP,AVRCP,HFP, HSP
3.Working voltage:3.1V~4.2V
4.Charging voltage:5V-1A
5.Speaker specification:11mm*2
6.Frequency response:20Hz~20kHz
7.lmpedance:32O
8.Battery capacity of the headset: 50MAH
9.Battery capacity of the storage box:2000MAH
10.Transmission distance:>15M
11.Call time:About 8 h
12.Play time:About 6 h
13.waterproof :IPX5
14.Charging time of headset:1.5h
15.Charging time of the Charging box:2h