Item Type: Metal Distortion Pedal Material: Metal Colour: Black Input Impedance: 1M Ohms Output Impedance: 470 Ohms Applicable Power Supply: 9V DC Power Adapter, Negative Polarity Inside and Positive Outside (Power adapter does not include) Package List 1 x Effector 1 x User Manual 1 x Hook and Loop Fastener 1 x Sticker Note that the positive and negative poles of the power supply should be the same as the positive and negative poles of the effector 1Metal Material: The effector is made of metal material, which is durable and wonderful. 2Contour and Distortion Control: This is an effect that can provide contour and distortion control. 32 Modes: This is a guitar effect that provides 2 extreme and classic modes, let you enjoy. 4High Degree of Distortion: The effector design provides a higher degree of distortion, with classic distortion sound. 5Mini Size: This effect device has a classic mini size, which can bringing you a musical feast.