An intercom system typically contains speakers, but it is not just a standalone speaker; rather, it is a two-way communication device comprising both speakers and microphones at different stations. While a standard loudspeaker only broadcasts sound in one direction from an audio source, an intercom system is engineered for interactive dialogue, utilizing transducers that can function interchangeably as both microphones to capture voice inputs and speakers to reproduce audio output across various rooms, gates, or master control stations.