4G public address system in an office or court

Large-Scale Public Address System Based on 4G Cellular Network

A public address system that transmits announcements via a cellular network is an excellent solution in locations where running speaker cables, network infrastructure or audio lines is impossible, impractical or too costly. It also performs exceptionally well when the distance between the microphone console and the loudspeaker points is very large.

The system’s loudspeaker units can be optionally powered by solar panels and batteries, allowing operation in remote or open areas such as extensive beaches, landscape parks, meadows, recreational zones or construction sites. The only requirement for proper functionality is the availability of cellular coverage from any mobile operator and an active SIM card installed in each broadcast point.

The system supports both scheduled playback of pre‑defined audio content and live announcements - instructions, alerts, warnings or public information - using one or multiple dedicated microphone consoles.