Digital audio for good sound quality.
Built-in hi-fi loudspeaker and pluggable microphone.
Removeable gooseneck microphone with light ring indicator on microphone stem, light up red when microphone turn on.
High sensitivity microphone.
Good ability for resistance to Mobile interference.
Speaking button and indicator lamp that can show and control the state of speech.
Two groups of 3.5mm stereo sound output socket; can be used as speech sound input and earphone connection.
Rotary volume control for adjusting built-in loudspeaker or headphone volume (when headphone connect).
Daisy-Chain connection.
Connecting cable 2.1m, 8P core line, convenient installation can increase efficiency.
The power for units is supplied by the master controller.
Reduce sound impact and wind shield.
Metal microphone shell bottom.