A wireless emergency notification system saves you thousands of dollars in installation cost and gives you capabilities you can't get on a wired system. These systems consist of several components. At the heart of the system is a Wireless PA (public address) receiver. You simply place these in all the needed areas. There is no expensive wiring required.
To transmit to the PA receivers you can use handheld 2-way radios, desktop base stations, or recorded messages or tones that are activated with a button press.
If you have a wired PA system in place already you can use it in combination with wireless PA receivers. A wireless PA bridge connects to your current hardwired system.
For more information on these systems you can click here: Wireless Emergency Notification System

Wireless Emergency Notification Ssytem