Wireless public address systems are filling a void in the realm of emergency response. In the event of natural or man made disasters or threats to security, P.A.'s act as an important tool when immediate emergency response is needed to reach a large number of people in real time. The system can aid in safety and coordination while allowing for “live” updates. A wireless P.A. is an inexpensive add-on to two way radios and helps officials better protect school campuses and communities.