Volume: controls effect volume - this gets fairly loud and can push an amp into a melting overdrive (not as much with cleaner, high-headroom amps)

Dirt: gain/baseline amount of fuzz - touch sensitive, so instrument volume (or pickups) as well as picking dynamics can also be used to crank the gain up/down.

Darkness: dial in how much bass enters the effect - more bass will also mean more signal, and with the touch sensitivity, this means more gain as well.

Sorcery: lower levels roll off higher frequencies, but crank the Sorcery up and it becomes sort of like an additional layer of fuzz.

Powered by the usual center-negative 9V supply (not included).

Handcrafted in the USA.