Movall MP-317 Phoenix wings Tremolo Mini Pedal + 3 Way PDC Power Quality Cable It is a Tremolo that utilizes a photoelectric circuit which sounds just like one of the tremolos you would find in vintage tube amps. It is flexible yet easy to use. A simple three knob control allows for adjustment of Rate (Speed), Depth (how much the tremolo fluctuates) and Wave. The Wave knob is very cool because you can change it from a subtle triangle wave to a drastic square wave. This way you can achieve the classic tremolo sounds we all know and love as well as the more modern ?stutter? sounds. It?s also possible to create amazing rhythmic pads, especially if combined with a cool delay sound. Features: Small, lightweight and exquisite Aluminum-alloy casing True bypass design Power: 9V DC adapter center negative LED indicator shows the working state. Product Dimensions: 9.6*4.2*5CM Weight: 0.25kg 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 * 3 Way PDC Power Chain 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 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.