Bluetooth Sleeping Headphones Slim and Comfortable Slim Elastic Sports Headband Wireless Music Headphones Side Sleeping Mask-la 6377

Material: polyester
Colour: Black, Gray
bluetooth version: 5.0
Bluetooth transmission distance: 10m
Music playing time: maximum sound 7h, average volume 10 hours
Microphone distance: 1m
Bluetooth standby time: 72h
Battery Capacity: 150mA/h
Battery: 0.55w
Horn impedance: 32 ohm
Horn power: 0.02w
Frequency range: 2.4-2.4835ghz
Sensitivity: 45db
Transmission power: 6db
Audio output distortion: 0.6%
snr audio output: 93db
Charging time: 1-2 hours
Maximum input voltage: dc 5v
Maximum input current: 150mah
Maximum input power: 0.55w

HS:6117109000
SKU:#IV#30-13-78-6378Sleep headphone
#IV#30-13-78-6378Sleep headphone Black 
#IV#30-13-78-6378Sleep headphone Grey