I've used this professionally for several years. I'm organizing my gear now that I'm reconfiguring my board. It has scratches overall, but it works perfectly fine. The AC adapter is not included. The BOSS RV-500, equipped with a variety of reverb effects. - Model Name: RV-500 - Brand: BOSS - Function: Reverb Effect - Controls: Tap/CTL switch, BANK DOWN, BANK UP - Display: LCD display - Knobs: Effect Level, Time, Pre-Delay, Mode Selection