الوصف

Feature: - Digital Speaker-overload Detection Automatically monitor speaker circuits. Whenever there is an overload or short circuit, the malfunction speaker can be automatically isolated, preventing damage to the amplifier. After the malfunction is remedied, the output can then be restored by pressing the reset , without the need to change any fuse. - Emergency Broadcast Operation Panel The operation panel has many functions: battery testing, voltmeter, output volume indicator, manual fire alarm broadcast , auxiliary MIC plug, emergency MIC, monitor speakers, CD/Tape/Radio, volume and pitch adjustment. - Battery Protection Under standby battery mode, whenever the battery voltage drops below *3V, it will stop discharging to prolong battery life. - Multilingual Content With build-in fire alarm broadcast (in Mandarin and Taiwanese). Multi-tier or unique speech sounds can also be ordered as needed. - A Complete set of accessories and optional functionalities available CD, Tape, Radio, telephone broadcast interface, timed bell broadcast unit, high level audio , RS**2 communication protocol interface, on/off work bell broadcast unit, remote controlled microphone, or a sub-unit; it can also collocate with the emergency phone control, with a complete set of accessories and optional functionalities available.