The Mooer Hustle Drive Overdrive pedal offers a wide range of tonal options in a compact and simple design. It has two modes of overdrive that are vastly different. High peak mode (HP) boosts up the bottom end. When increasing the distortion via the DriveUltra wide dynamic range and extraordinary open tube-like drive sound. Two Working Modes: HP/LPHigh peak mode (HP) boosts up the bottom end. When increasing the distortion via the Drive knob, you get more volume and a slight increase in high-mid range (around 3.5KHz), Low peak mode (LP) colors the original sound very little but works well for clean boosting. Full metal shell - Pedalboard friendly - True bypass.