4G public address system in stations, airports or car parks

Large-area public address system based on a 4G cellular network.

A public address system based on the transmission of messages via a cellular network is an excellent solution where it is impossible or inconvenient to lay speaker, network or line cables, or where the distance from the microphone to the speaker is very long.
The public address elements of the system can be optionally powered by solar cells and batteries, allowing broadcasting in places such as a vast beach, a landscape park, a meadow or a construction site.
For smooth operation of the system, all that is required is mobile network coverage from any operator and an active sim card at each broadcasting point.
It is possible to create a schedule of playback content, as well as broadcasting instructions, warnings or live information, using one or more dedicated microphone units.