The Josef Klier 7 E trumpet mouthpiece offers excellent endurance along with a slight treble edge. Josef Klier USA mouthpieces are modeled after the classic Mt. Vernon series by Vincent Bach. Thanks to its well-crafted design and very comfortable wide rim, this mouthpiece supports good endurance. The flat, medium-sized cup helps produce a bright, full sound with a clear high register. For anyone searching for a reliable lead mouthpiece, the Josef Klier 7 E is a top choice.