Feature:1. Fine Tune Metal Pedal: Fine tune overall balance of the metal guitar pedal with the level, pitch and distortion control knobs.2. Bypass Function: This is an effector with a real bypass function and a powerful analog circuit.3. Metal Material: The effector has a refined appearance, solids metal material, durable and exquisite.4. High Gain Distortion: The effector can simulate high gain distortion of sound with excellent clarity.5. Compact Design: This effect is stable and sturdy, and the compact design is easy to carry anywhere.Specification:Item Type: High Gain Distortion PedalMaterial: MetalColour: PurpleInput Impedance: 470k OhmsOutput Impedance: 100 OhmsProduct Power Supply: 9V DC Power Adapter, Negative Polarity Inside and Positive Outside (The adapter is not included)Size: Height: Approx. 48mm / 1.89inWidth: Approx. 42mm / 1.65inLength: Approx. 94mm / 3.70in.Package List:1 x Effector1 x User Manual 1 x Hook and Loop Fastener1 x StickerNote:Note that the positive and negative poles of the power supply should be the same as the positive and negative poles of the effector