MXR Talk Box – Classic Vocal-Style Effect The Talk Box is the pedal behind that unmistakable "talking guitar" sound, made famous by Peter Frampton and Stevie Wonder long before MXR brought it into a stompbox format. Rather than a digital approximation, it works the old-school way, driving sound through a tube into your mouth to shape the formants, so the vocal-style effect you get is entirely real, not modelled. Features: Drive control to set the input level feeding the speaker driver Volume control for the output level Dedicated internal speaker driver and plastic tube for forming the vocal effect with your mouth True bypass switching Standard 9V operation via included power supply Condition: Excellent. Light use only, no marks of note, with everything functioning exactly as it should. Included: Comes complete with the original box, papers, plastic tube, and power supply.