Feature●【Low Noise】Low noise circuit ensures a clean signal path, providing quiet compression●【Intuitive Control】Create perfect sound with intuitive adjustments: sustain compression rate, "level" output volume and "attack" compression speed. Each knob offers a wide control range●True Bypass: Even when the pedal is turned off, it maintains the original tone with zero coloring●【Retro Design】Durable aluminum alloy case and compact size make it easy to attach to the effect board●DC 9V: DC 9V adapter power supply (sold separately) is required. (Center Negative)Description