Features: Four knobs control the overall volumes, gains, tone and voicing of the pedal. Having high adjustment flexibility, allowing performers to find the most suitable tone for themselves. The shell is make of metal, enduring and anti drop, ensuring stability and reliability under long-term use. The intuitive layout design allows players to quickly grasp the device's functions and adjust the response time in just 10 milliseconds. Easy to carry and can be easily placed in an instrument bag. Suitable for both beginners and experienced players to improve efficiency in actual performances. Specifications: Component: Metal Shell Size: about 11.5x6.5x5cm/4.53x2.56x1.97inch Working voltages: 9V Package Includes: 1pc Guitar Effect Pedal note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.