The Soulo all-aluminum trumpet wah-wah mute combines the traditional Harmon buzzy mute sound with a ground-breaking aerodynamic shape. This improves typical issues associated with metal "Harmon" mutes and offers perfect pitch and a free-blowing experience. Its patent-pending shape allows the air to naturally flow inside of the mute, undisturbed by a crimp or any other barrier. Includes a removable polycarbonate stem to allow you to achieve the "wah-wah" effect.