The digitech DROP is a dedicated polyphonic DROP tune pedal that allows you to DROP your tuning from one semitone all the way down to a full octave. Get down-tuned Chunk without having to change guitars! The DROP also features a momentary/latching switch. With the switch set to momentary, you can turn the DROP into a true performance pedal. Fast trills and roller-coaster pitch dips are at the tip of your toes. The DROP is true bypass and uses a 9V DC power supply to easily integrate into your existing pedalboard.