Funien Guitar Pedal, Audio Mini Guitar Pedals BP Booster Clean Boost Effect Type True Bypass Switching for Guitar Bass Electro-acoustic Products, Black : Amazon.co.uk: Musical Instruments & DJ
18v Pedals?
Tru-Fi Colordriver 18 Volt Guitar Pedal like the original Colorsound Power Booster
Crazy Tube Circuits Super Conductor Boost Pedal – Windmill Guitars