Detailed Product Description

Electronic Loudspeaker Overload Detection:
This unit can automatically detect the circuit of the loudspeaker. In case of overload or short circuit, it can automatically separate the AMP from the loudspeaker to prevent the AMP from burning. After trouble shooting, press the RESET key to resume output, with no need to replace the fuse.

Emergency Voice Guidance Panel:
The panel of this unit has a number of adjustment functions, including battery testing, preparatory indication of power supply and voltage, front music, output volume indication, automatic voice button, auxiliary MIC input hole, emergency MIC, monitoring loudspeaker, CD/TAPE/RADIO and volume control of sound source. 

Battery Protection:
Under the usage mode of reserve power supply, this unit will stop discharge if battery voltage is below 13V, in order to maintain the service life of the battery.

Multilingual Voice
Built-in fire alarm broadcasting (English). Other languages or multi-level voice can be subscribed if needed.

Attached equipment expansion function
CD TAPE RADIO The telephone broadcast interface Timer bell player High level audio input interfaceRS232 Protocol interface boardRemote control   mircophone Secondary systemMay subscribe urgent telephone system.