Features:
Bluetooth version: 5.0
Speaker size: 40MM
Output power: 40mW
Audio output: tow channels
Work voltage:3.3V - 4.2V
Impedance: 32Ω
Sensitivity: 108dB
Frequency response: 20Hz-20KHz
Transmission distance: 15M
Use time: 15 hours (Talk time: about 4.5 - 5 hours)
Battery capacity: 250 mAh
Charging time: 1-2 hours
Microphone: Yes
Product size :20.5*18.5mm
Package listing:
1*headphone
1*charging cable
1*English manual
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