This 10 band EQ effect pedal is suitable for both Bass and Guitar: The frequency band ranges from 31.25 Hz to 16 kHz, including 4-string, 5-string Bass and 6-string, 7-string Guitar. On the pedal?s right side, there is an independent Volume Control Knob, + or -12 dB boost making it a perfect boost for making a solo stand out, or to push a tube amp into overdrive mode, and the related LED light on each knob flickers accordingly. LED light control switch: SYNC mode: the LED light illumines when the footswitch is turned on, otherwise the it will go out. ALWAYS mode: the LED light is always on. OFF mode: the LED light is off. Specifications Input Impedance 470K? Output Impedance 470? Signal Bypass Type True Bypass Rated Current Consumption 30mA Working Voltage DC 9V(center minus) Power Supply Only supports external power supply, with no battery compartment Dimensions 125(L)X 78.5(W)X 48(H) mm Weight 290g Package includes 1 x JOYO R-12 10 Band Controller Equalizer EQ Pedal 1 x User's Manual. Note: Power supply not included. Please use the 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 via USPS Ground Advantage ) 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.