Overdrive / Distortion w/ COSM

With the Boss OD-20 Drive Zone Twin Pedal, COSM modeling gives you the sound of 16 classic overdrive and distortion pedals plus 6 all-new tones, while deep-level controls let you shape your own sounds. Attack Shape and Heavy Octave knobs let you profoundly impact the effect. The OD-20 stompbox has 4 user memories and line out with amp simulator that's also a headphone out. Amp control jack lets the OD-20 double as a footswitch for switching amp channels. BOSS 5-year warranty.

16 classic overdrive models
6 brand new models
4 user memories
Attack shape and heavy octave knobs for deep-level control
Headphone out/line out with amp simulator
Works as a footswitch for changing amp channels

https://www.boss.info/us/products/od-20/