Smart Noise-reduction Bluetooth Headset Invisible Ear Back

Product information:
Color: Black-listening aid 16-channel Bluetooth 5.2 two-in-one
Transmission range: 15 meters
Chip type: Hearing Aid chip
Battery life: more than 8 hours
Function: ultra-long life battery battery, support music, listening function
Material: Plastic aluminum alloy
Usage: in-ear
Style: simple style
Channel system: Stereo
Headphone battery capacity: 65 mA
Battery capacity of charging bin: 500 mA
Playing time: 12-15 hours
Standby time: 180 days
Transmission Distance: 10-15 meters
Maximum gain: 35±5dB