Fire Alarm Voice Evacuation Control Panel and speakers is a standalone public audio system for emergency evacuation. Description Fire Alarm Voice Evacuation System Control Panel Feature Maximum power output: 350Watt. Speaker driving mode: constant voltage. Evacuate message up to 1 minute. Background audio: USB2.0. Complies with EN54 part 16. Network function (work with AW-FP300 series addressable fire alarm control panel) Maximum 15 pcs AW-VP350 can be connected with 1 pcs AW-FP300 addressable fire alarm control panel. Each AW-VP350 panel can be programmed to maximum 20 channels and controlled by AW-FP300 addressable fire alarm control panel.