The TC Electronic Sustain+ Parametric Equalizer Sustain Pedal is a high-quality product designed for electric guitars. This pedal allows guitarists to create and control sustain effects, as well as adjust the tone of their guitar using a parametric equalizer. With its analog technology, this pedal delivers a warm and natural sound that can be easily blended with other effects for a unique and versatile tone. Perfect for guitarists looking to add dynamic and expressive sustain effects to their music. Batteries not included. Picture shown for reference and to know which type of battery to buy. Tested and working.