Amazon.com: M-Audio EX-P | Universal Expression Pedal for Keyboards, MIDI Keyboards/Controllers and Supported Guitar Effects Pedals : M-Audio: Everything Else
MIDI Expression Pedal EX3. Programmable and configurable. An autonomous MIDI expression pedal for sending CC events (e.g. Volume or Modulation), Pitch Bend or Aftertouch. : Amazon.co.uk: Musical Instruments & DJ
Korg XVP20 Expression/Volume Pedal | MIDI Footswitches & Pedals - Store DJ
sonuus - Music Products Designed in the UK
MIDI Solutions Pedal Controller; Continuous MIDI Data Generator