The SO WHAT Flanger, Sounds like the jet engine roaring, the famous jet-flanger sound. By using a classic BBD simulation circuit, , this flanger can deliver a deep and rich tone. The four controls Speed, Regen, Width and Delay allow you to shape your desire sound., from dynamic jet-plane effects to space effects to short delay, wave-like chorus and vibrato sounds. True Bypass: Minimizes signal loss Power Requirements: AC adapter 9V DC center negative plug (not included) Note: Power supply not included. Please use the 9V power adapter whose polarity is negative center otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual(English Chinese) 1 * Year warranty through our store No Duty to Canada and USA FAST 'N FREE USA Shipping (typically about 4 days) Ships from Canada *Just to be clear on DUTY, (regardless of what 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.