1、The top controls adjust the high end, while the main body simulates the actual resonance of the guitar main body 2、Piezo, standard and mega mode three‑way selectors make a significant difference in sound 3、This AC analog effect device is small in size, light in weight, easy to carry, suitable for external performances, and equipped with a DC 9V battery cable 4、Adopt aluminum alloy shell, aluminum alloy has higher strength, specific strength is close to high alloy steel, specific stiffness exceeds steel 5、AC analog pedal possess good corrosion resistance, so the material of this product is very good 1 x AC Analog Pedal1 x Battery Cable1 x AC Analog Pedal Footpad Item Type: AC Analog PedalMaterial: Aluminum alloy shellPower Requirement: 9V DC center negative pole(adapter not included)Input Impedance: 1M OhmsOutput Impedance: 1K OhmsCurrent Consumption: 20mASize: Approx. 11.2 x 6.4 x 3.4cm / 4.4 x 2.5 x 1.3in