The Joyo R-12 Band Controller is a 10 band Equalizer. Whether it's bass, guitar, or synth, this pedal can cover the frequencies you need from 31.25 Hz to 16 KHz. Also has volume slider that makes this in effect a boost pedal. Spot a noisy frequency and silence it, boost a frequency to stand out for a solo, cut booming feedback, bring life to a muddy mix - an EQ pedal is essential and so useful! This 10 band EQ effect pedal is suitable for both Bass and Guitar. The frequency band ranges from 31.25Hz to 16kHz. . On the pedal’s right side, there is an independent Volume Control Knob, and the related LED light on each knob flickers accordingly. With no battery compartment This gives you a lot of control over your input signal. You can combine it with your favourite fuzz or distortion pedal to slice out or boost the frequencies you want. You can also use them in your fx loop with your delay, to cut out booming frequencies and control your repeats when playing live. This will stop your live mix getting too muddy and bass heavy, making it easier for your audience to hear your delayed guitar tone repeats.\ Features: Brand:- Joyo Model:- R12 Input Impedance:- 1M? Output Impedance:- 100? Rated current consumption:- 30mA Working Voltage:- 9v DC Centre Negative (not included) Signal Bypass:- True Bypass Dimensions:- 12.5cm x 7.8cm x 4.8cm Weight:- 316g 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 (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.