JOYO JF-319 Green Legend Overdrive packs the classic TS circuit in a very small pedal. We packed a photoelectric tube overdrive channel that sounds warm and natural into a tiny pedal. Its Green too, use it to push your amp into vintage territory, send it into the classic vintage overdrive tones. When connected to a tube amp, this pedal will push it and overdrive a clean sound or push your drive sound into crazy territory. Of course we added True Bypass to minimize tone loss, that’s sort of standard.