- Viking advanced clock controlled tone/message generator- Designed to provide accurately timed tones and/or messages over existing paging system- Provides a cost effective way of signalling school period changes, factory shifts, breaks, lunch periods, etc.- 4 programmable trigger inputs which are ideal for triggering emergency alert tones/messages to indicate fire evacuation, severe weather, lock down, all clear or can be used in store castor applications for customer service required announcements, etc.