This pedal is used but functions as it should, includes original box. No power supply is included, here's more info from Stomp Under Foot:

"The Dirt Preacher is a hybrid between silicon and germanium transistors that gives you a full range of fuzz tones that sounds like a mix between a Big Muff and a Tone Bender through your favorite, vintage amp.

With the gain control around 9-10 o'clock you can get an overdriven tone. When turning the gain between 11-1 o'clock you get a smooth, muff-like fuzz and with the gain all the way up you get a gnarly, gritty, wooly, fuzz that sounds like you are pushing a maxed out Tweed amp.

The specifically matched, germanium transistor gives you a vintage grittiness and a little, tube-like sag.

Stomp Under Foot pedals are made by hand using only quality, through-hole components.

Specs:

• NOS Germanium Transistor
• True-Bypass
• 9V Battery or 2.1 9V Adapter Only
• 8mA
• NOS Parts
• Handmade in the U.S.A."