The same silky smooth violin-like sustain and creamy tone as the Big Muff Pi, in a compact die-cast box! The EHX Little Big Muff Pi is identical to our Big Muff Pi but smaller. We took the classic Big Muff circuit and simply shrunk it without any change to the sweet violin-like sustaining sound. This little brother displays its heritage proudly. Tough and compact die-cast chassis 9V battery included SPECIFICATIONS Circuit Analog Bypass True Bypass Audio Mono Power Supply 9V battery included (optional 9.6VDC-200mA power adapter not included) Dimensions (in) 4.75 x 4 x 2.25 Current Draw 4mA Year Released 2006