Features:<br />Combined guitar effects, 3 effects (Compressor &#43; Tube Overdrive &#43; Ultimate Overdrive) &#43; 8 DC 9V power supply outputs.<br />Compressor: classic dynamic compressor based on the DYNA COMP creates infinitely clean sustain, with output level and sensitivity control knobs.<br />Overdrive 1: based on the Tube overdrive(ts9), with Drive, Tone and Level adjusting knobs.<br /> Drive--Adjusts the amount of distortion; Tone--Adjusts the amount of treble in the sound; Level--Adjusts the output volume of the pedal.<br />Overdrive 2: based on the obsessive overdrive(OCD), with Drive, Tone, Vol control knobs and HP/LP switch.<br /> Drive--Adjusts the amount of overdrive; Tone--Adjusts frequency in the sound; Vol--Adjusts the output volume;<br /> HP/LP switch--The High-Peak function gives you increased distortion and low-end, thickening up your sound for a more &#34;British&#34; flavor.<br /> The Low-peak mode gives you a more accurate rendition of your sound with very little coloration of your tone.<br />Power Supply Outputs: 8 isolated power supply outputs for guitar effects(7 * outputs DC 9V 100mA; 1 * output DC 9V 500mA).<br/>Specifications:<br />Material: Metal<br />Power Supply: DC 9V power adapter(not included)<br />Item Size: 19 * 12 * 3.5cm / 7.5 * 4.7 * 1.4in<br />Item Weight: 655g / 1.4lb<br/>Package List:<br />1 * Effect Pedal