Electro-Harmonix NANO BASS BIG MUFF PI Bass Distortion/Sustain PedalThe huge Bass Big Muff sound now in a nano sized package. Voicing inspired by the tank green Russian Big Muff with the classic Big Muff Pi layout of Sustain, Tone and Volume controls. Controls for Volume, Tone and Sustain let you sculpt your distortion and drive, while the Dry switch mixes your dry bass with the EHX Nano Bass Big Muffs distortion. Specifications Tailor your drive distortion sound with Sustain, Tone and Volume knobs Features a Dry