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Product Model: BO555
Bluetooth Version: V5.3
Bluetooth Profifiles: HFP,HSP,A2DP,AVRCP
Transmission Distance: UP to 10 meters
Talk Time*: UP to 6 hours
Playing Music Time*: UP to 8 hours
Standby Time*: UP to 70 hours
Battery (Headset/Base):80mAh/500mAh
Charging Time: 1.5 hours
Driver: φ16.2mm
Driver Sensitivity: 128±3dB @1KHz
Impedance: 22Ω±15%
Frequency Response: 20Hz-20KHz
Audio Decoding: SBC, AAC