Product Description

* Aluminum panel colored drawing technology, embedded installatio
* The built-in high fidlity capacitor sound head, make sound good ,high definition, low noise
*Efficient howling suppression function, super sound effect
* Microphone sound head open ,red indicating lamp
* Having "FIFO"/"open"/""free talk"/"limit" of various speech patern
* Chairman unit is free of any restrictions on behalf of unit shut down at any time, fully display the priority right to speak