Features:The Vintage Phase pedal beautifully re-creates the classic phaser sounds of the 70's; fans of Van Halen love will love it so much!Easy to use， with just the single "speed" control knob--you can adjust the effect speed.True bypass design minimizes tone loss. Aluminum alloy casing with stoving varnish finish.Specifications:Model: JF-06Color: GoldenMaterial: Aluminum alloyInput impedance: 500K��Output impedance: 10K��Speed range: 0.2HZ-14HZRunning current: 13maPower: 6F22 9V battery / DC 9V adapter (Neither included)Item size: 12 * 7.1 * 5.8cm / 4.7 * 2.8 * 2.3inItem weight: 285g / 10.0ozPackage size: 13 * 7.9 * 6.2cm / 5.1 * 3.1 * 2.4inPackage weight: 315g / 11.0ozPackage List: 1 * Effect Pedal1 * User Manual (English & Chinese)