This is a clone-type effector made by GeekFX Koubou. It's a model that combines the very clean distortion of a Jan Ray and a SHO for clean boosting, and you can also swap their order. This single unit can handle a variety of sound creations. The Jan Ray has a saturation knob that's a screw, making it difficult to adjust, but this model has a knob for easy adjustment. The SHO has a volume knob and a gain knob, which the original doesn't have. When you turn the knobs, you'll hear a crackling or scratchy sound, but this is the same specification as the original, so it's not a defect. I've been using it as my main pedal for a long time, but I'm reluctantly selling it because I have too much gear.