Electro Harmonix C9 Organ Machine guitar effect pedal, with 9 perfect adjusted and tuned presets (Tone Wheel, Prog, Compact, Shimmer, Lord Purple, Mello Flutes, Blimp, Press Tone & Telstar), fast tracking, control for dry (Vol), organ (Vol), mod and click, 9 presets, jack input, jack output for dry and organ, 9V power supply 9.6DC-200 PSU included