Whenever you are in a public location, or even at an institution like a company or school, you most likely hear a lot of announcements broadcast along the entire area. Once you hear the sounds or alarms that precede an announcement, you listen to what the person is saying, since it could be very important for those within the area. The Public Address or PS system has always enabled this to happen in large areas, warning or introducing something to a large audience that they should pay attention from. Even government and private grounds use this especially if the higher ups want to publicly address something immediately. Today, the entire system becomes available for purchase, all while changing the design and use of the sound system to make them easier to use.
The PA system is actually a large and expansive set of accessories that is used for large scale addresses and immediate announcements. The main component is the AV receiver that connects all parts together wirelessly or otherwise. Then there are the speakers that are connected to the receiver, where the sounds and recordings are broadcast live. Finally, there is the recording mic where the user or the announcer speaks. By pressing a button, the system goes live, and the user can immediately speak and people could hear. Today, there are some variants of the PA that people can get from the top online shopping site in the Philippines, all with new and much simpler interfaces that are still perfect for establishments that need public addresses and the constant announcements heard out loud. If you are ever starting a group or SMB, and would use a building, the best PA devices that are sold as a bulk or as individuals devices are now available today.