Voice Alert System-6 is a new annunciation system featuring wireless PIR (passive infrared motion detector) sensors, transmitters and a remote receiver/speaker base unit. The voice alert system users record their own alert messages for each of the 6 zones and are then notified with their own voice message when activity in a monitored zone is detected. You create your own messages and place a wireless sensors wherever you wish. Voice alert system 6 sets up in minutes and be completely customized to fit your individual needs. The wireless PIRs features: all weather protection, adjustable mounting and sensitivity and can send a signal 300 feet through walls and up to 1000 feet in open space. With the voice alert system 6 you can add as many voice alert sensors as you need per zone.