single channel passive audio transceiver. The device transmit
terminal use blue logo, receive terminal use red logo, use CAT
5/5e/6 UTP cable as transmission medium, transmit 1 channel 1V
audio signal up to **0m, or transmit1 channel 6V audio signal up to
***0m. It features long transmission distance, good transmission
effect, super anti-interference, widely used in radio, audio
monitoring these voice system
