Features:The Joyo British Sound JF-16 get tones inspired by Marshall amps--everything from Bluesbreaker to Plexi Roar! 6 Controls for shaping EQ and overdrive response: Low， Mid， High， Level， Voice， and Drive.Quality components， true-bypass wiring.Sturdy aluminum alloy case.Specifications:Model: JF-16Color: PurpleMaterial: Aluminum alloyInput impedance: 1M|?Output impedance: 1K|?Running current: 3.8mAPower: 6F22 9V battery / DC 9V adapter (Neither included)Item size: 12 * 9.6 * 5.7cm / 4.7 * 3.8 * 2.3inItem weight: 395g / 13.9ozPackage size: 13 * 10.4 * 6.2cm / 5.1 * 4.1 * 2.4inPackage weight: 435g / 15.3ozPackage List: 1 * Effect Pedal1 * User Manual (English & Chinese)