DescriptionDescriptionFeatures:Offers that warm and natural overdrive sound.By turning the buttons, you can increase the guitar amplifier to a colored tone or overdrive for a unique pedal sound.True bypass hardware switching.The LED indicator shows the status of the effect.Powered by AC adapter.Mini and portable, the case is made of aluminum alloy.The rubber pads on the back are non-slip, which increases stability and prevents friction between the effect pedal and the ground.Specifications: Brand: KOKKO Model: FOD3 Main material: aluminum alloy Input impedance: 1M Ohms Output Impedance: 10K Ohms Power supply: External ACadapter providing 9 V CC regulated minimum of 300 mA Item size: 9.4 * 5.1 * 5.3 cm / 3.7 * 2 * 2.1 in.Item Weight: 177g / 6.3 ozPackage Size: 10 * 7.5 * 6.2 cm / 3.9 * 3 * 2.4 in.Packing Weight: 214g / 7.5ozPackage List: 1* Guitar Effect Pedal1* User Manual (English) Note: Use the 9V power adapter whose polarity is external positive pole and internal negative pole. Otherwise, the product may not function properly.