Amazon.com: BOSS EV-5 Expression Guitar Pedal and M-Audio SP-2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Musical Instruments
Sustain, Damper and Expression Pedals – Easy Music Center
Amazon.com: M-Audio EX-P | Universal Expression Pedal for Keyboards & SP 2 - Universal Sustain Pedal with Piano Style Action For MIDI Keyboards, Digital Pianos & More : Everything Else