This is a pedal that recreates the Zendrive by Warm Audio. It's a pedal characterized by a gritty, warm distortion. Turning the Voice knob increases the gritty distortion even further, giving it an impression somewhere between a fuzz and an overdrive. I think it's the perfect distortion for rock and roll riffs. They're not very common, so how about taking this opportunity? - Model Name: Warmdrive - Brand: Warm Audio - Control Knobs: Tone, Voice, Level, Gain - Input Jacks: 1/4 inch jack - Output Jacks: 1/4 inch jack - Power: DC 9V Thank you for looking.