Jo-Ral Tri-Tone Cup Trumpet MuteTri Tone Cup trumpet mute in aluminium Three distinctive sounds from a single mute that's what the Jo Ral tri tone mute delivers. Specifically designed to provide exceptional versatility in artistic expression, this all aluminum mute includes two felt rings that can be inserted to create different sounds. With one felt ring inserted, the result is a softer, less brilliant sound than the mute alone provides. With both rings inserted, the sound is