The EHX Triple Foot Controller gives you remote control over functions in pedals that are equipped with an external foot control jack. Depending on the pedal it's plugged into, the Triple Foot Controller can control tasks such as setting tap tempo, toggling through programs, mode selection and more. It works with Electro-Harmonix pedals as well as those made by other manufacturers. The EHX pedals the Triple Foot Controller is compatible with are: 720 Looper: list functions it controls Grand Canyon Delay & Looper: lists functions it controls Mod Rex Polyrhythmic Modulator: lists functions it controls Superego+ Synth Engine: lists functions it controls Super Pulsar: lists functions it control