Flanger KOKKO FOD3 True Bypass Mini Overdrive Guitar Effect PedalDescription: Level knob: control the level of the signal Tone knob: control the amount of high frequency Drive knob: adjust the amount of overdrive Input\/output: 6.35 mm mono jack  Specifications:Brand: KOKKOModel: FOD3Main Material: Aluminum alloyInput Impedance: 1M OhmsOutput Impedance: 10K OhmsPower Supply: External AC adapter \/9V DC 300mA batteryItem Size: 94 * 51 * 53 mmItem Size: 173.6g Features:LED indicator shows the status of effect.Delivers that warm、 natural tube overdrive sound.Mini and portable、enclosure is aluminum alloy shell.By rotating the knobs you can boost the guitar amp for colorful tone or overdrive itself for unique pedal sound.Rubber pads on the backside is anti-skid、 which enhances the stability and avoids friction between the effect pedal and the ground.Package included:1 x Guitar Effect Pedal1 x User Manual(English)