Feature: 1. Analog fuzz guitar effect pedal with aluminum alloy shell, durable and lightweight. 2. 2 working modes: LED mode--distorted tone plays as strong low frequency and natural midfrequency; SI mode--distorted tone plays as solid low frequency and deep. 3. 3 control knobs: FUZZ adjustment konb, VOLUME control knob, TONE control knob. 4. True bypass footswitch for switching between delay effect and bypass status. 5. Dual power supply ways for you to choice: DC 9V power adapter or 9V battery by battery cable(power adapter and battery are not included) Specification: Features: Analog fuzz guitar effect pedal with aluminum alloy shell, durable and lightweight. 2 working modes: LED mode--distorted tone plays as strong low frequency and natural mid frequency; SI mode--distorted tone plays as solid low frequency and deep. 3 control knobs: FUZZ adjustment knob, VOLUME control knob, TONE control knob. True bypass footswitch for switching between delay effect and bypass status. Dual power supply ways for you to choice: DC 9V power adapter or 9V battery by battery cable(power adapter and battery are not included) Specifications: Input: 1/4 inch monaural Jack Output: 1/4 inch monaural Jack Power Supply: DC 9V adapter (center minus plug) or 9V battery ( both are not included) Working Currency: 50mA Input Impedance: 1M ohm Output Impedance: 600 ohm Item Size: 6.5 * 12 * 3.5cm/ 2.6 * 4.7 * 1.4in Item Weight: 240g/ 8.5oz Package Size: 16 * 9.5 * 7cm/ 6.3 * 3.7 * 2.8in Package Weight: 296g/ 10.4oz Note: Power adapter and battery are not included. Package List: 1 * Effect Pedal 1 * Battery Cable 1 * User Manual(English & French & German & Italian & Spanish & Japanese) Package List: 1 * Effect Pedal 1 * Battery Cable 1 * User Manual(English & French & German & Italian & Spanish & Japanese)