STOY Fuzzmaster is a hybrid Muff style fuzz. From the restrained overdrive sound and light fuzziness to over the top biting fuzz. Many textures and character traits can be summoned with the Volume, Sustain and Tone controls. The Fuzzmaster also has an expression output that sets the range of the sustain level. It provides a great dynamic range from smooth overdrive to full throttle fuzz. The Fuzzmaster has a soft-click footswitch so no worries about popping sounds or sore feet, if you prefer to play barefooted.