UH320B RF wireless headphone Online Chat/TV/PC(With 2 Headphones)
Function:

• 3 Channels slectable for transmitter. 
• Auto power on/off for transmitter.
• VHF/RF wireless headphone.
• The headphone can be used as a Hi-Fi stereo wired headphone.
• Talk on internet with wireless headphone .
• Talk on internet with wired stereo headphone .
• Dynamic display of Audio level for transmitter
• One transmit with two headphones

Technical specification: 

• System:RF
• modulation: Frequency modulation ( FM )
• transmit power:10mW
• operation distance: >50meter( 360°)
• Input Audio level:=150mV
• S/N ratio: >60dB
• Distortion: <2%THD
• frequency response: 30 ~ 20,000Hz
• power supply :
  transmitter:  DC 12V/120mA
  receiver: