Viyora provides Sound Sytems, Amplifiers, Microphones, PA & VA solutions for all audio requirements. The key to communicating to people in large buildings or open spaces is using a Public Address (PA) system so you can be sufficiently audible at a distance or over a large area. PA systems are suitable for a variety of public announcements, background music or events.PA systems are centralised systems made up of loudspeakers, amplifiers, microphones, and audio-switching matrixes that are used to broadcast alarms and provide voice announcements to multiple or single areas of a building or venue using loudspeakers.