Bluetooth version: V5.0
Channel system: stereo
Battery capacity: 35mAh, 3.7V/300mAh
Charging time: 1h Call duration: 3.5h Music duration: 3h
Frequency Response Range:20Hz -20KHz Speaker impedance: 16Ω ± 10% Support Protocol: HSP/HFP/A2DP/AVRCP Input charging standard: DC 5V
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