Bb ECHO CORNET (SILVERED) Length: 14 inches Bell Diameter: 4.5 inches US$ 180.00 The “TRISTAR” Echo Cornet has a second bell that provides an instantaneous muted effect on pressing the 4th valve. When the 4th valve is operated, the airstream is directed into the cone shaped 2nd bell creating a muted sound. It can be used to produce echoed phrases and to practice in unsympathetic surroundings. It can also be used in a novelty to produce a quickly pulsating echo by quickly utilizing the valve in rapid succession. A hard case and mouthpiece are included.