Features: Rotate sustain, attack, level, clipping--4 knobs to adjust, control, finally get desired sound. True bypass provides transparent tone, perfectly retains the original guitar tone. Solid durable aluminium alloy shell; glitter silver coating, rust-proof, long lasting; whole, classic, simple, nice. Compact compressor guitar effect pedal, pocket size, light weight, convenient to anywhere. Work stable, well, effectively reduce dynamic range, make the tracks sound more polished, provide round smooth tone. Specifications: Material: Aluminium alloy Color: Silver Item Size: 94*39*32mm / 3.70*1.53*1.25in Item Weight: 165g / 5.82oz Package Size: 11*6.5*6cm / 4.33*0.25*0.23in Package Weight: 180g / 6.34oz Note: Compressor only, DC 9V power adapter and other accessories in pictures are not included. Due to lighting or other reasons, the picture and material object may slightly differ. Due to manual measurement, there may be deviation, please in kind prevail. Note: 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 Pedal 1 * User Manual ( English ) 1 * Year warranty through our store No Duty to Canada and USA FAST 'N FREE USA Shipping (typically about 4 days)Ships from Canada (depending on stock availability, may also ship from our Niagara Falls NY. location) *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.