1.Designed in accordance to ISO and IEC914.
2.Speaking and listening function.
3.The system power supply for all the delegate units is provided by the main unit
at 24 safe voltage.
4.9P-DIN plugs for system T-type connection.
5.Unidrectional electrets MIC and HIFI voice loud-speaker
6.Electric capacity type microphone, equipped with windshield cover.
Sell Conference System Microphone 
