Monzani MZMU-03 is a mute for trumpets. It offers an excellent price-performance ratio and can also convince in intonation. The smoothe sound is ideal for the big band or in jazz. Also the workmanship of this model is successful and testifies to the quality of our series. The cup of this model is completely removable and adjustable. The rubber lip on the cup protects against scratches on the bell of the instrument!