Features:Distortion effect pedal with unique pre-amp and power tube distortion, you'll be amazed to hear the warm and organic tone.With gain amount(GAIN), signal level(LEVEL) and high frequency amount(TONE) control knobs.has a specially designed BJT input stage causing it to "break-up" when the preamp tube starts to distort.True bypass, with LED indicator showing status of effect.Compact size and full metal shell, lightweight and durable.Specifications:Material: metalInput: 1/4" mono jackOutput: 1/4" mono jackPower Supply: DC 9V center negative power adapter(not included)Item Size: 9.5 * 4.2 * 3.5cm / 3.7 * 1.7 * 1.4inItem Weight: 179g / 6.3ozPackage Size: 11.7 * 6.6 * 6.6cm / 4.6 * 2.6 * 2.6inPackage Weight: 262g / 9.2ozNote:Power adapter is not included.Please use the DC 9V power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.Package List:1 * Effect Pedal1 * Users' Manual(English & Chinese)