Amazon.com: Vivlex LEF-318 Boost Guitar Effects Pedal Analog Mini Overdrive Booster Clean Boost Pure Boost Pedal for Electric Guitar and Bass with True Bypass Switch, Full Metal Shell : Musical Instruments
Amazon.com: Sondery Boost Pedal for Electric Guitar and Bass, Mini Clean Booster Effect Pedal, True Bypass, More or Less 14dB Change for Frequencies Under 250Hz or Above 1KHz, Art Design Foot Pedal :