An effects pedal is a device used by musicians, particularly guitarists, to modify the sound of their instrument. These pedals can create a variety of sounds, including distortion, reverb, delay, and modulation. They are typically placed on the floor and activated by foot switches, allowing musicians to change effects while playing. Effects pedals can be analog or digital and are often used in combination to create unique soundscapes. Popular brands include Boss, MXR, and Electro-Harmonix. Many musicians use these pedals to enhance their performances and explore new sonic possibilities, making them essential tools in modern music.