Features: High-quality distortion guitar effect pedal. 4 functional knobs(VOL./GAIN/PRES/TONE) for adjusting the performance of the overdrive effect. True bypass footswitch for switching between distortion 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" monaural Jack Output: 1/4" monaural Jack Power Supply: DC 9V AC adapter (center minus plug)(not included) Item Size: 9.3 * 3.8 * 3.2cm / 3.7 * 1.5 * 1.3in Item Weight: 155g / 5.5oz Package Size: 11.5 * 6.5 * 6cm/ 4.5 * 2.6 * 2.4in Package Weight: 185g / 6.5oz Note: 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