MXR La Machine, from the MXR custom shop, limited edition, effect pedal for electric guitar, Fuzz distortion, thick retro fuzz sound, octave mode adds an octave up tone to the fuzz signal, controls for output tone and distortion, true bypass, 6,3 mm in and output, status LED for on/off and octave on/off, operating with 9V battery or 9V DC power supply separately available #108096 (not included), made in usa.