Wireless Microphone System LCD Display Professional Home KTV Set

Specification: 
RECEIVER: 
Frequency range: 620-680MHz; 
Frequency response: 40Hz~18KHz; 
Working distance: 80m; 
Carrier Wave Stability: 士5PPms10KHz; 
Image Interference Ratio: > 80dB; 
S/N Ratio: < 0.5%@1KHz; 
T.H.D(1KHz): -105dB(12dB S/N AD); 
Operation Voltage: 12-15V DC 500mA. 
  
TRANSMITTER: 
Frequency Range: 620-680MHz; 
Dynamic Range: > 11dB; 
Frequency Stability: +0.002%; 
Frequency Deviation: +45KHz; 
Radio Frequency Output Power: 10mW; 
Power Consumed: ≤100mA@3V. 
  
 Package Included: 
2x  Handheld Wireless Microphones; 
1x  LCD Display Karaoke Receiver; 
1x  Power Adapter; 
1x  6.5mm o Input Cable.