I confirmed its operation about a year ago, but it has been stored away since then. Therefore, until I can confirm its operation in the near future, please consider it as junk with unconfirmed operation. I will revise this listing once I have confirmed its functionality. This is a model from ZOOM's series, which was made with a focus on analog distortion and analog circuits. It is famous for being used by Tomoyasu Hotei and is very popular, currently trading at a premium price. While it's primarily a distortion pedal with deep distortion, the equalizer also works well. You can control the mid-range and sound quality with TREBLE, MIDDLE, BASS, and RANGE controls. I would like to request no returns or exchanges (NCNR), so please feel free to ask any questions you may have.