Behringer Octave Divider; Effects Pedal for Electric Guitar, Bass & Keyboards; Authentic analog recreation of the popular Octave Divider from the 70's, Sub-Octave effect; Ringer function for harmonic emphasis of upper tones and special multi-note effects; Bass Only switch for extended range; Stabilize switch for improved note tracking of monophonic signals; Controls: Mix, Tone; Switches: Power, Ringer, Stabilize; LED: Effect On; Bass On; Footswitches: Effect Bypass; Connections: Input (1/4"" Jack), Output (1/4"" Jack); Aux (1/4"" Jack); Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; powered by a 9-12 V DC Power Supply (included)); Note: Battery operation is not supported