Heinrich DVA4W-500 All-In-One Digital Voice Evacuation System controller is designed to meet the needs of paging system, PA system, BGM system and EVAC controller, All present in one controller together. It includes built-in amplifier with 4 zones of 120W each and it has separate zone volume control (ATT) in each zone. It has two separate EVAC players in addition to SD card players. It also features the standby mode if a fault problem arises. Additionally, it continuously monitors 4 zones of low-impedance speaker lines. It also has input from an external amplifier for power expansion. It can connect up to 8 remote microphone units & with the exception of the fireman's microphone. It can be activated emergency evacuation message by pressing the red EVAC button. It is a perfect solution for advanced and smart buildings.