The Cocktail is an effect looper/send-return for your pedal rig with an active hi-fi Ompamp circuit. The mix knob lets you dial in the perfect amount of loop balance. Going from completely dry to completely wet. The second control is a clean analog boost that will bring the quiet pedals to more volume or dedicate certain pedals to a louder lead volume. You can also have this function as an A/B box or an instrument mixer and is all true bypass.