Feature:US Dream Effect Pedal gives your clean amp another distortion channel, simulates the high-gain distortion tone of a driven tube amplifier.Three knobs are separately used to adjust the amount of distortion(Dist Knob), adjust the volume of the sound (Volume Knob), and adjust the intensity of the tone (Tone Knob).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-4Input Impedance: 1m OhmsOutput Impedance: 1k OhmsRunning Current: 10mAPower Supply: DC 9V Adapter (Not included)Item 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.