Innovative dual function: Can be used as a practice mute and as a mouthpiece buzzing mute Excellent air flow thanks to special technology Gradual reduction in air volume and resistance thanks to an adjustable wheel When the adjustable wheel is closed, the Vhizzper functions as a mouthpiece buzzer Adjustable intonation and adaptation to different horn sizes by means of an adjustable ring system Material: tough, fibreglass-reinforced thermoplastic plastic Concept, design and production "Made in Germany
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