Features:Noise reduction guitar effect pedal.2 working modes: Hard, Soft.With control knob for adjusting the threshold of the noise reduction.True bypass footswitch for switching effects and bypass.LED light for indicating effects or bypass status.Full metal shell, durable and sturdy.Effects Explanation:Hard-- Provide hard effect of noise reductionSoft-- Provide soft effect of noise reductionSpecifications:Material: MetalSignal Input: 1/4″Monaural Jack (impedance: 1M Ohms)Signal Output: 1/4″Monaural Jack (impedance: 100 Ohms)Power Supply: DC 9V adapter (center minus plug)Working Current: 26mAItem Size: 3.5 * 9 * 3cm / 1.4 * 3.5 * 1.2inItem Weight: 145g / 5.1ozNote:The power adapter is not included.Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.Package List:1 * Effect Pedal1 * User Manual(English & Chinese)