The Zoom G3n Multi-Effects Guitar Effect Pedal is a digital processor designed for electric guitars. With its model being the G3n, this pedal offers a range of effects for guitarists to enhance their sound. As a unit designed by the brand Zoom, it provides high-quality effects in a compact and portable form. Perfect for musicians looking to add depth and versatility to their guitar sound on stage or at home, the Zoom G3n is a reliable and popular choice in the world of effects pedals. Never Used, Open Box. Power Supply missing