Features:6-Band equalizer professional guitar pedal.Includes the frequency bands: 100Hz， 200Hz， 400Hz， 800Hz， 1.6MHz and 3.2MHz.Each band provides 18Db (Plus or minus) range to help you find your favorite tone.True bypass design minimizes tone loss. Sturdy aluminum alloy case.Specifications:Model: JF-11Color: BlackMaterial: Aluminum alloyInput impedance: 500K|?Output impedance: 10K|?Running current: 15mAPower: 6F22 9V battery / DC 9V adapter (Neither included)Item size: 12 * 7.2 * 5.7cm / 4.7 * 2.8 * 2.3inItem weight: 295g / 10.4ozPackage size: 13 * 8.0 * 6.2cm / 5.1 * 3.1 * 2.4inPackage weight: 330g / 11.6ozPackage List: 1 * Effect Pedal1 * User Manual (English & Chinese)