Trompet Pressure Reducing Valves Mouth Corrector Breath Training Correct Professional Correction Assistant Tool

Golden/silver plated Trompette mouthpiece with pressure reducing valves, the main purpose is to adjust and correct wrong blowing, with to play Pressure reducing valves for Trompette mouthpieces, pressure adjustment, correction of blowing, good embouchure and breath, in order to progress towards professionalism. Pressure size adjustment, and can be adjusted according to the proficiency, so as to achieve the mouthpiece to save effort, more accurate and better sound. Your satisfaction is our priority, please to purchase our product at ease. If you are not satisfied with our product or have any questions, please to our. The mouthpiece is more effortless, it is CNCcutting brass and with good cup mouthpiece are designed with care.