Product information :
Function: noise reduction
Channel: Stereo
How to use: earplugs
Color: White
Battery capacity: 490mAh
Transmission distance: 20m
Bluetooth version: Bluetooth 5.2
Charging: about 1.5 hours
Frequency range: 20Hz-20KHz
Packing list:
Headphone*2+Charging compartment*1
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