Feature:Vintage Phase Effect Pedal re-creates the classic phaser sounds, that wide spacy, eerie phase effect that fans of Van Halen love.Easy to use, with just the single "speed" control knob -- you can dial up that in-and-out of phase tone in no time.With the True Bypass design, which minimizes tone loss, to realize the original sound of your guitar.LED visually indicates the working status of the guitar pedal; powered by DC 9V adapter, convenient to use. (Power adapter is not included.)Aluminum alloy casting with fine finish surface, stylish appearance; with standard 1/4 inch input and output sockets.Specification:Model: JDF-6Input Impedance: 500k OhmsOutput Impedance: 10k OhmsRunning Current: 13mAPower Supply: DC 9V Adapter (Not included)Speed Range: 0.2Hz - 16HzItem Size: 92 * 42* 52mmItem Weight: 144g / 5.1ozPackage Size: 10.5* 5.8 * 5.2cm / 4.1 * 2.3 * 2inchPackage Weight: 170g / 6ozPacking List:1 * Effect PedalNote:Power adapter is not included.