Features:Guitar distortion fuzz effect pedal designed for electric guitar players.SUSTAIN knob adjusts the amount of sustain and distortion; VOLUME knob sets the output level.TONE knob provides a range of sounds from high treble to deep bass.True bypass footswitch for switching between overdrive effect and bypass status.LED light for indicating effects or bypass status. Full metal shell and compact size, durable and portable.Specifications:Input: 1/4 inch monaural JackOutput: 1/4 inch monaural JackPower Supply: DC 9V AC adapter (center minus plug)(not included)Item Size: 9.3 * 3.8 * 3.2cm / 3.7 * 1.5 * 1.3inItem Weight: 147g / 5.2ozPackage Size: 11.5 * 6.5 * 6cm/ 4.5 * 2.6 * 2.4inPackage Weight: 180g / 6.3ozNote:Power Adapter is not included.Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.Package List:1 * Effect Pedal