Having a hard time using diaphragm call? This interchangeable external bugle mouthpiece was engineered to solve the age-old problem for folks that are not able to use a traditional diaphragm. This mouthpiece uses the popular AMP frame to create the most realistic bugles from an external mouthpiece. The EZ Bugler Mouthpiece requires its own unique reeds and replacement gaskets (mouthpiece comes with one of each).