This is a rather rare pedal. It's like a ring modulator and fuzz combined? That's the kind of sound it makes. I've confirmed its functionality with an adapter, and after double-checking, I've also confirmed it works with batteries! I plan to list it on a certain auction site, so please be aware that the listing may end suddenly. Since it's an old item, I'm selling it as-is, no returns or exchanges (NCNR).