The portable PA System or Public Address System is an electronic acoustic amplification device that can be used to broadcast messages and information over a limited range. They come in different types and have different features incorporated to suit different needs. The audio enhancing equipment is usually used in institutions like schools, colleges, offices, hospitals, supermarkets, and department stores. This is also convenient to use in places of public gathering like religious institutions, airports, railway stations, exhibitions, fairs, stadiums, and theaters.
This system typically comprises of detachable loudspeakers, a built-in amplifier, mixer, and a microphone. The loudspeakers have to be installed in various places within the designated area. Many branded systems now boast of two-way speakers. The amplifier is meant for increasing the volume of the sound and the mixer helps to manipulate the sound levels. If needed, intercoms can be connected with portable pa systems to enable the listeners to talk back to the user.