Nothing so much to explain this pedal. It's known for its 4-sec delay in the small box. I used to use it w/ BOSS PS-3 Pitch Shifter - which I will sell very soon.
I throw in the DOD AC power adaptor. One knob cover is missing but no problem to use it. You can replace the cover cheaply w/ generic knob cover if you'd like.
Here's the new link: