1.Overall System (American power supply : 100-240V; 50/60Hz)

Carrier frequency  VHF255.8 MHZ :     231.5MHz 
 Frequency Response 80-15kMHz 
Signal-to-Noise Ratio >100dB 
  Temperature range   -20°C~+55°C 
  Effective action distance   100 M, Ideal space 60M

 2.FIXED  RECEIVER

Frequency stability   <±0.005%
  Sensitivity   3uV 30dB S/N 
  Image Rejection  >80dB 
  Border upon channel rejection  >80dB 
Output plug    1/4 unbalance plug and XLR balance : 0-500mv

 3.HANDING  MICROPHONE

Frequency stabilization  <+30ppm 
 Modulation type  fm,f3f 
  Modulation depth   <25KHz 
RF Power output   10mW 
Power Supply   1.5 V battery 
 Battery life (h)  8  hours

Accessories

Receiver 1pc 
Transmitter 2 pcs 
1.5 V Battery 2 pcs 
antenna 2 pcs 
Power adaptor 1pc 
connector 1 pcs 
 manual 1cs

send by DHL , 3 days can get the product , pls note