As above:
Disortion typed vintage pedal.
Three knobs: Level, Tone, Gain.
Peculiarity of the Switch start that does not "click": Original!
9V DC power supply or battery-type Boss.

UTILIZATION

like any distortion pedal has three knobs!

SOUND QUALITY

Against by the very top ...
I saw a demo on youtube that was just WHAOOOUUU!
But in fact it is far from that (for me at least) I play on a tv and a tube amp (hayden)
I play so far on a Boss DS-1 with a change kit (msm) (I aileurs account that makes this kit is simply MAGIC!)
The sound seems "compressed" as the pedal was clamped sis ...
It is not clear ... not sharp
I said it's not dégeu but ... we will say that I'm staying on my boss Ds-1 change!

OVERALL OPINION

For 45 € (modelle expo) I'm not too ripped off!
But for 100 € (in shop) I THINK THAT ITS NOT WORTH THE!
Greatly prefer a good change DS-1 like me! worth € 50 in Cygnus (30 + 20 pedal kit)
I'm really quite over by this pedal dégeu not because it is as said above! but it is just a lot worse than what we can see from the demo viedo ...