Compact and mighty, the BOSS MD-200 gives you every key modulation effect in a minimal footprint. Modern and vintage BOSS chorus effects are included, plus phaser, flanger, rotary, vibrato, and tremolo. Classic vibe and ‘70s phaser effects are also available, complete with selectable distortion for added versatility. BOSS’s famous Slicer delivers lots of cool rhythmic grooves, while the rich Overtone effect dishes up fat octave tones and unique sonic colors. There’s a highly adjustable auto wah as well, which can double as a foot wah when an expression pedal is connected.