Bluetooth solution:AD6973D4
Bluetooth version:V5.2
Speaker unit:Full-frequency speakerΦ10mm
Microphone MIC:Silicon Imi,-38dB+-1
Earphone battery capacity:50mAh*2
Charging case capacity:400mAh
Frequency response characteristics:20HZ~20kHZ
Music time:about 7 H
Talk time:about 6 H
Charging time:about 2H
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