This is a fuzz pedal that's not often seen on the market. It can be used with a standard center-negative 9V adapter. It has a gritty fuzz sound typical of Japanese-made fuzz pedals. Depending on the settings, you can also get a scooped-mid octave fuzz sound. Instant purchase is OK. I believe it should work, but I don't have an adapter to test it, so I'm selling it as junk. Therefore, I've priced it a little lower than the used market. Due to it being a junk item, returns are not accepted, so please purchase with this in mind. Please only purchase if you understand that this is a used item sold as-is. The only included item is the pedal itself; there are no other accessories.