BEHRINGER SUPER OCTAVER SO400 The ultimate octaver with Polyphonic Octaves function for processing polyphonic inputone octave below the lowest note The ultimate octaver with Polyphonic Octaves function for processing polyphonic inputone octave below the lowest note Take off with ultra-stable mono- and polyphonic octaver sounds plus an aggressive Drive mode for fat overdrive sounds Dedicated Mode, Range/Oct 2/Drive, Oct 1 and Direct controls for awesome sound shaping Blue status LED for effect on/off and battery check