B19 HiFi Wireless Bluetooth Headphone LED Display Noise Cancelling TF Card Stereo Earphone Headset
Specification:
Bluetooth:BT 4.0
Working voltage: 3.7V
Distortion: 1%
Speaker: 32Ω
Charging voltage: DC 5V
Frequency response: 20Hz-20kHz
Signal to noise ratio: 75dB
Call duration: 6h
Music player: 8h
Standby time: ≥ 30 days
Charging time: 5h
Package included:
1X Bluetooth earphone
1X user manual
1X USB cable
1X audio line
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