Sky Wing Communication Electronics Co., Ltd.

3.5mm Cable Mini FM Radio Wireless Stereo Earphones Headphone for MP4 and MP3

Specifications
wireless earphones
1.Stereo wireless headphone
2.FM radio receiver
3.Wireless chatting
4.Wireless monitoring
wireless earphones 
This model is applicable to TV, PC, DVD, DV, MP3, MP4, and all audio output equipment
It has super five functions:
Stereo wireless headphone
Stereo wired headphone (use with one 3.5mm cable)
FM radio receiver
Wireless chatting
Wireless monitoring
This is the hot-selling model with different colors available
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 Specifications

Transmit power: < 10 mW
S/N ratio: > 75 dB
Channel separation: >35 dB
Distortion: <1%
Operation distance: up to 50 m in the open air
Frequency response: 25 Hz - 20, 000 Hz
Microphone: built-in into the transmitter, working distance at least 3 m
Transmitter power supply: 9 VDC, 200 mA
Headphones power supply: 2 pcs x AAA battery
Batterylifetime: up to 24 hours for 1000 mAh batteries