This is an Arion TS-type overdrive. What's interesting is that it seems to distort more wildly than the original. Despite its cheap construction, it sounds energetic. I can see why people are particular about using this kind of pedal. Please judge the condition from the photos. The sound works properly. Each knob also functions. The battery case lid feels a little loose. Returns are not accepted, so please refrain from purchasing if you are prone to making unreasonable complaints.