Electro Harmonix HOG2, Electric guitar effects device, Synthesizer, New algorithms, Polyphonic, Freeze function, All parameters and presets are fully MIDI controllable, Master volume regulator, Store and recall up to 100 programs with the optional foot controller (not included), True Bypass, Octave, MIDI, wah wah, envelope filter, and more, Dimensions (W x D x H): 235 x 152 x 57 mm, Includes power supply (9LDC-500) and expression pedal