Electro Harmonix Slammi, e-guitar stompbox, Pitch Shifter, poliphonic, up to three octaves, Dry control, 11-way Bend control (Detune, ½ Step, Major 2nd, Major 3rd, Perfect 4th, Perfect 5th, Major 6th, Minor 7th, 1 Octaves, 2 Octaves or 3 Octaves/Dive Bomb), power supply is NOT included