JOYO WAH-II Classic and Multifunctional WAH Pedal Featuring Wah-Wah/Volume Functions with WAHWAH Sound Quality Value knob (Red) : Musical Instruments - Amazon.com
Amazon.com: JOYO Wah-II/Wah 2 Multimode Pedal with Wah-Wah & Volume/Bypass Dual Mode Function, Q Value Knob, Mini Multifunction Electric Guitar Effects, Tone Filter for Country Surf Funk Sound Music Bass : Musical
JOYO Wah-II Revolution Series Multifunction Wah Volume Q Control Dual Mode Pedal