Simply the best practice mute available, the Stealth is a must for hotel rooms and late night practicing. Pitch and articulation are excellent. The Stealth comes in two sizes, the #5 and the slightly smaller #4.
Very nice sound out of this mute. And it's real clear and loud on very low notes which sometimes sound better than without it. At least with my horn, it does not stay secure in the bell. You definitely have to make sure you've got the strap around your wrist or it will fall out.