● Bluetooth specification:V5.3
● Bluetooth Profile:A2DP,AVRCP,HFP, HSP
● Working voltage:3.1V~4.2V
● Charging voltage:5V-1A
● Speaker specification：8mm*2
● Frequency response:20Hz~20kHz
● lmpedance:32Ω
● Battery capacity of the headset: 50MAH
● Battery capacity of the storage box:2000MAH
● Transmission distance:>10M
● Call time: About 6 h
● Play time: About 5 h
● Waterproof: IPX7
● Charging time of headset:1.5h
● Charging time of the Charging box:2h
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