Portable TWS Stereo Earbuds ST15

Bluetooth version: QCC3020 V5.0
Bluetooth profile: HFP/A2DP/HSP/AVRCP
Bluetooth frequency: 2.4GHz-2.48GHz
Impedance: 32Ω
Speaker sensitivity: 105dB
Microphone sensitivity: -42±2db
Working range: 10m
Charge case battery capacity: 400mAh
Battery Capacity(one earphone): 3.7V/40mAh
Playing time: 4 hours
Standby time: Up to 48hours
Charge time: ≤2 hours
Tab Contral,SIRI And SENOR

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