PIONEER REVERB CONNECTS THROUGH TAPE MONITOR JACKS ON YOUR STEREO. PROVIDES EXTRA SWITCHED MONITOR JACKS. YOU CAN RECORD NORMAL SOUND OR REVERB SOUND TO TAPE. HAS HOOKUP DIAGRAMS ON BOTTOM OF UNIT. OVERSEAS MODEL 120V or 220V. GIVES CONCERT HALL ACOUSTICS SOUND. SPRING REVERB TYPE. WOOD CABINET MODEL. SOUNDS GOOD WORKS GREAT. NO ORIGINAL OWNERS MANUAL OR BOX.