Xotic Effects XVP-250K High Impedance Volume Pedal
Boss Fv-50h/fv-50l High Impedance Volume Pedal/stereovolume Pedal Bundle With Picks, Pickbag, Polishing Cloth And Strings Winder - Guitar Parts & Accessories - AliExpress
Volume Pedal 101: Types, Uses, and Why You Need One - Pro Sound HQ
Volume Pedals – Xotic California
Amazon.com: Boss FV-30L Foot Volume Low-Z : Musical Instruments