PA System, Conference System (with Audio Visual)

A public address system (PA system) is a sound amplification system used to allow persons to address an audience at a greater volume than would be possible or practicable without such a system. At a minimum, such a system comprises a microphone, an amplifier and a loudspeaker.

• PA system use Shopping mall, airport, rail terminal, bus terminal, mosque, large corporate office, auditorium, stadium, parking basement, trade fair and biggest open public area.