Plena VAS System Voice Alarm Controller - Expandable To 60 Zones
Fire Alarm Integrated Voice Evacuation and Messaging System | Fike
Voice Evacuation System 25W, 1 Speaker Circuit, 120VAC, Red - Includes Digital Message Repeater, Temporal Pattern, Microphone, Power Supply and Battery Charger
TOA Electronics, Inc. - Voice Alarm System Amplifier