Apogee Electronics GiO - USB Guitar Interface and Controller GIO
Live Logic - Blackstar
Amazon.com: MeloAudio Tone Shifter Mega MIDI Foot Controller and USB Guitar Recording Audio Interface for iPhone, iPad,Android Devices, Mac and PC : Musical Instruments
Best MIDI Foot Controllers for Guitar - Guitar Gear Finder
Behringer | Product | FCB1010
Best MIDI Foot Controllers for Guitar - Guitar Gear Finder