Guitar distortion fuzz effect pedal based on electro-harmonix Big Muff Pi.SUSTAIN knob adjusts the amount of sustain and distortion; VOLUME knob sets the output level.TONE knob provides a range of sounds from high treble to deep bass.True bypass footswitch for switching between overdrive effect and bypass status.LED light for indicating effects or bypass status. Full metal shell and compact size, durable and portable.Supply: DC 9V AC adapterInput: 1/4 inch monaural JackOutput: 1/4 inch monaural JackItem Weight: 147g / 5.2ozcolour:blackMaterial:metalsize:9.3 * 3.8 * 3.2cmPackage Contents:1 * Effect PedalNote:Power supply not included.Please use a 9V DC power adapter whose polarity is negative center otherwise, the product may not work properly.Package List:1 * Effect Pedal1 * User Manual(English & Chinese)1 * Year warranty through our storeNo Duty to Canada and USAFAST 'N FREEUSA Shipping (typically about 4 days via USPS )Ships from Canada*Just to be clear on DUTY, (regardless of what eCRATER warns buyers of ) Canada and the USA have a trade agreement in place that allows US citizens to purchase/import up to $800 dollars per purchase in to the United States from Canada with NO Duty at all, State taxes are another story, some states charge a TAX some do not, BUT NO duty.