*Latest digital design.
*With microphone ,speaking button and indicator lamp that can show and control the state of speech.
*Whole metal microphone shell .
*With a microphone unit connecting cable.
*Single projection; With Anti‐gas sonic boom and wind shield.
*High sensitivity microphone.
*The power for units is supplied by the master controller at 9 safe voltage.
*Hand‐in‐hand connection method.
*With a microphone unit connecting cable 2.1m, 8P core line, convenient installation can increase efficiency.