This listing includes a 1000ma 9v DC power adapter isolated regulated so your pedal will work 100% The Pedal Chorus/Vibe is a Chorus/Vibrato pedal for making that vintage modulation sound simple. If you combine it with a classical distortion effect you can recreate the enthusiasm of the late 60s. Unlike the expensive, hard-to-find original model, it's compact, simple, easy to use, and can be easily carried around so you can enjoy that "vibe sound." It's not limited to classic tones. For example, if you combine it with an expansive dreamy reverb type effect or other digital effects, you can create your own unique new sounds. It's a compact pedal with just 3 control knobs and toggle switches. Experience the sound I'm talking about. True-Bypass Switching Circuit True bypass means that when the effect is off your guitar tone will not be affected at all. The true bypass circuit makes sure you have absolutely no tone loss or signal reduction through the choruspedal in the off/bypass mode. This switch makes sure you have absolutely no tone loss or signal reduction through the chours even in the off mode. Specification: Input impedance: approx. 500K Output impedance: approx. 10K Current consumption: 500mA at 9VDC DC supply voltage range: 9 V 500ma DC (this pedal needs 500ma and above to work correct ) Dimensions (L/W/H): 94(L)MM x 39(W)MM x 32(H)MM Power: 9V500ma DC, Negative Tip (Regulated recommended)(not included) Weight: 165g Note: Power supply 1000ma 1A is included. Please use a 9V 500ma DC power adapter whose polarity is negative center otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * 9v DC 1000ma 1A center negative Power supply 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.