Enjoy hassel-free, reliable, wireless audio transmission with the Sound Barrier SB-502UHF 
Wireless Microphone System. The system will provide you with years of professional performance 
required for live performances, speaking engagements or any on stage event. This system is
dual channel with fixed frequency making it easy to use and setup. 

• UHF 800MHz operation frequency
• Dual Channel Operation
• Fixed Frequency (UHF 673-697.8MHz)
• Noise Squelch Circuit
• 1/4" Audio Output Jack
• Power, "AF" (Audio) and "RF" (Signal) Front Panel LED Indicators
• Dual Antennas
• Handheld MIC with Power / Audio Mute Switch & Low Battery Indicator.
 
Receiver Specifications
Receiving Channel
Fixed Frequency 
Image & Spurious Rejection
>70dB
Receiving Sensitivity
-105dBn
S/N Ratio
>85dB
Border Upon Channel Rejection
>70dB
T.H.D.
<0.5%
Audio Output Level
0-300mV
Power Requirements
13-15V DC nominal 200mA
Dimensions
6.7" x 4.7" x 1.5" 
169mm x 12mm x 3.7mm
Transmitter (Wireless Microphone) Specifications
Carrier Frequency
UHF 673-697.8MHz 
RF Output
>10dBm 
Modulation Type
FM 
Max Deviation
±40kHz
Working Distance
180 ft. 
Spurious Emission
>55dBc
Power Requirements
2 x AA Battery (1.5V) 
Dimensions
9.8" x 2" x 2" 
250mm x 51mm x 51mm