This pedal was developed by Bob Bradshaw and the Crybaby design team with the goal of creating a highly versatile Wah Wah of top grade components. It features switchable dual Fasel inductors with two distinct voices (high-end emphasis or low to mid resonance) and a built-in MXC401 boost/line driver adds even more flexibility. Side mounted kick switches and bright LEDs on each side of the Wah, internal pots for Q and gain adjustments. Also features true hardwire bypass and long life CTS pot. Powered by 9v battery or AC adaptor (ECB003).