I am only the second owner of this groovy, vintage pedal and I've owned it since the early 70s - Seriously! It hasn't been used since the early 70s - I know this - and hardly used even back then. It has a 5 position tone selection switch for different sounds. It's been stored away in a box from my early teenage years; stored away in conditioned spaces all this time. I just found it and had it checked out and cleaned up by a very experienced local music electronics repairman and it works great. The screws and rubber pads on the bottom are not all original, and the battery holster has been replaced, so you know. It's as throwback a pedal as you can get!!