Public address system is also known as PA system. Public address systems mainly include portable public address systems, car public address systems, school public address systems, etc. We are a public address system manufacturer who also produce wireless public address system, automatic PA system, PC link PA system, intelligent PA system, etc. These quality PA systems have won an industry wide recognition. For instance, many of them are used in American Wal-Mart Stores Inc, China Zhejiang University, Russian St. Petersburg Commercial Center, Singapore General Hospital and Ethiopian National Sports Center etc. You are welcome to contact us for more information!