sistema de rodovias IP
Classificação: Sistema Rodoviário Tempo de lançamento: 19/05/2022 Pageviews：7444
Highway IP network broadcasting system/Highway IP network emergency telephone intercom system, the selection, and setting off the highway background music speaker, first consider the background music speaker playback effect without sound bias and dead corners and ensure the background. The sound of music does not affect people’s normal face-to-face conversation in daily playback. In the event of an emergency, it can be played with the loudest effect to ensure that every place must be heard.