Bluetooth version :V5.3
Bluetooth profiles: HSP、HFP、A2DP and AVRCP
Battery: Lithium battery 250mAh
Music playing time: 20 hours
Driver unit: 40mm neodymium
Sensitivity: 101dB±3dB
Microphone Sensitivity: -42dB
Support hands-free conversation
Support 3.5mm audio in
Support battery indication
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