Zoom FP02 Expression pedal for Zoom multi effects | #161108700
Zoom FP-02M Expression Pedal, Designed to be Used with All Zoom Multi-effects Processors Including the G3n, G3Xn, G5n, B3n, and More : Musical Instruments - Amazon.com
Zoom G3X - Guitar Effects and Amplifier Simulator with Expression Pedal - Liquid Audio