The Wilson Halo Kit at its core has the renowned Wilson Effects Halo inductor, which produces a deeper, more throaty sound with rich vocal-like qualities and added depth. It includes a master volume control, resonance control for customizable filter shaping, durable 2N4401 transistors, a modified mid-range to boost presence, and an array of additional modifications for superior playability. Ideal for players wanting a bolder, more aggressive wah effect that's easy to install and ready to rock.