The Electro-Harmonix Synth 9 effects pedal is a versatile digital pedal designed for use with acoustic electric guitars, bass guitars, and electric guitars. With its single and sustain effects, this pedal allows musicians to add a wide range of tones and textures to their music. The white design complements the aesthetics of various instruments, while the high-quality construction ensures long-lasting performance on stage or in the studio. Perfect for expanding your guitar sound and enhancing your performances.