?Features:<br> Precise octave modulation pedal for electric guitar.<br> Separated volume knob for sub and upper octave£¬ suitable for different music styles.<br> Small and exquisite appearance with true bypass design.<br> Durable aluminum alloy housing.<br> 3 individual level knobs: Dry£¬ Upper£¬ Sub.<br> Dry: controls the dry sound volume of your dry sound;<br> Upper: controls the volume of the upper octave effect; <br> Sub: controls the volume of the sub octave effect.<br> <br> Specifications:<br> Color: Coffee<br> Suitable for: Electric guitar<br> Material: Aluminium alloy &amp; PCB<br> Input: 1/4" monaural jack (impedance: 2.2Meg Ohms)<br> Output: 1/4" monaural jack (impedance: 560 Ohms)<br> Power requirements: AC adapter 9V DC<br> Current draw: 130mA<br> Item size: 9 * 3.5 * 3.2 cm / 3.5 * 1.4 * 1.3in<br> Item weight: 146g / 5.2oz<br> Package size: 10.5 * 6 * 4.6cm / 4.1 * 2.4 * 1.8in<br> Package weight: 173g / 6.1oz<br> <br> Package List:<br> 1 * Precise Octave Pedal<br> 1 * User manual (English &amp; Chinese)<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>