MIDI Expression Pedal - EX3 from beat bars on Tindie
MIDI expression pedal with a toe switch
Beat Bars EX3 USB/MIDI Expression Pedal | Bax Music
Boss EV-1-WL Wireless MIDI Expression Pedal | Sweetwater
Crumar UP4 USB-MIDI Expression Pedal | Sweetwater
Boss EV-1-WL Wireless MIDI Expression Pedal | KraftMusic.com
Boss EV-1-WL World's first wireless MIDI expression pedal Shipping from Japan | eBay
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