This used Keeley OP AMP FUZZ Effect Pedal is in great condition and delivers bold, high-gain fuzz with rich harmonics and sustain. Designed for powerful and dynamic tone shaping, it features a Level control for output adjustment, a Tone knob for dialing in brightness, and a Fuzz control for everything from subtle grit to scorching distortion. The unique op-amp circuitry provides tight response and a distinctive voicing that stands out in any mix. True bypass switching ensures a clean signal path when disengaged. Built with Keeley's signature craftsmanship, this pedal is housed in a durable enclosure for reliable performance. Perfect for guitarists looking to add aggressive, full-bodied fuzz with a modern touch to their rig. Runs on a standard 9V power supply (not included).