The 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 Muff’s distortion. Tailor your drive/distortion sound with Sustain, Tone and Volume knobs Features a Dry switch that mixes your dry bass, at unity level, with the Nano Bass Big Muff’s distortion True bypass for maximum signal path integrity Road worthy die-cast chassis 9V battery included