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Monday, November 5, 2018

China wholesale best V4.1 stereo wireless BT headphones US $6.20


Wireless version 
V4.1
Audio frequency scope
2.402GHZ~2.480GHZ ISM Band
Receiving sensitivity
-80dbm
Communication distance
≥10M
Headphone capacitance
400mAh
Rated voltage
3.7V
External charging voltage
DC 4.8-5.5V
Frequency response
20-20KHZ
Charging power source
PC USB 5V
Charging time
2-3H
Support 
wireless , AUX ,TF card

Specification:
Wireless version: V4.1
Operation range: ≤10m
Battery capacity: 400mAh
Driver Unit: 40mm
Impedance: 32 Ω
Charging voltage: DC5V
Working time: 6-8h
Microphone: built-in
Power rating: 40mw
Working voltage: DC3.7V
Frequency: 20-20KHz
Audio cable included
Standy time: 20 days.