A distortion pedal is an electronic device used by guitarists to alter the sound of their instrument. It works by clipping the audio signal, which creates a "distorted" tone that adds sustain and harmonic richness. This effect is popular in various music genres, especially in rock and metal. Musicians can control the level of distortion, tone, and volume through the pedal's knobs. Distortion pedals can be used in combination with other effects, such as overdrive and fuzz, to create unique sounds. They are essential tools for many guitar players looking to enhance their sound.