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. Quick Specs - 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 - 9Volt battery included - EHX 9.6DC-200 AC adaptor available