I received my BeatBuddy yesterday. Upon unboxing the unit, I heard a most disconcerting rattle in the body of the pedal. I unscrewed the bottom and found a black plastic disc loose in the unit. Turning it around a small brass screw fell out. I figured out that this was the volume control disk for the headphone control. I re-opened the unit and attached the disk with the screw. I just now turned the unit on, and it seems to be OK. Haven’t had a chance to really test it, but I thought you might need a heads up on the QC of assembly.