Eliminates paging feedback "squeal". Your paging amplifier can be turned up to any level, and phones located anywhere. It maximizes efficiency by adjusting to the actual page length (16 second record time) * "Live" input from paging port is digitally recorded, then activated the paging amp* VOX contacts activates paging amplifier * Allows phones to be located under horns * Compatible with virtually any paging or telephone system * Record/Playback LED * Can be expanded to 60 seconds of recording time with optional ERAM-60.