SIP Broadcast and PA System, New Broadcasting Technology

New Broadcasting Technology. Via RJ45(LAN) cable to connect each place. No matter how far it is, SIP broadcast and PA System can pass out the audio without sound distortion.
To get rid of the traditional equipment and chaotic cable installation, it use Cat.5 cables to keep the sound quality and save construction costs and maintenance costs.
Use audio trigger device to link the signal sources from different devices (such as computers, DVD players, earthquake alarms, etc.) to prevent signals loss and let teachers and students receive all message and respond the emergencies.
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