A public address system (also known as a PA system) is an electronic system that includes microphones, amplifiers, loudspeakers, and other components. It boosts the perceived volume (loudness) of a human voice, a musical instrument, or any other acoustic sound source, as well as recorded sound or music. PA systems are utilised in any public arena where an announcer, performer, or other speaker must be audible from afar or over a big area.
PA system is a key factor in all companies and plays a major role in all business enterprices, thus making them available throughout the process. Better the service, better is the ouput.