With this wireless device, you can listening music freely without wires.

Features of this product:

1> 49Mhz radio frequency technology
2> Operating distance: 30ft(10m)
3> Cushioned headband & ear cups
4> Power seitch built into telescopic antenna
5> Line-in Jack for optional direct-to-source connection

Specifications:

1> Transmitter:
System: VHF/RF
Modulation: Frequency Modulation
Carrier frequency: Channel 49.86 Mhz
Radiated output power: <10mW
Effective transmission range: 30ft(10m)
Input level: 500mW
Power supply: 1.5V*4PCS AAA batteries

2> Receiver:

System: VHF/RF
Carrier frequency: Channel 49.86 Mhz
S/o ratio: >50dB
Distortion: Audio frequency range: 20-20, 000Hz
Power supply: 1.5V*4PCS AAA batteries

Packing: Gift color box
Color box size: 20.5*17.8*9.6 CM