Full automatic communication control, duplex voice intercom communication technology automatically recognize and process the voice signal without any operation during

communication 

Stereo output port for both internal and external voice signal output (for bank clerk recording), recording function is not controlled by the power button and function buttons 

Use high performance components, high output power up to 5W, clear and loud sound quality, high voice resolution Independent mute control button on host unit for both external and

internal units, which can be controlled according to the application 

Elegant appearance design, built-in LED indicator on the buttons for simple use 

Customized anti-side tone processing chip for automatic squelch control and effectively minimize the howling 

Audio signal input function like PC voice prompt for exter