On-Stage TCM7530 Trumpet Whisper Mute Free blowing mute produces natural sound without compromising intonation or pitch Made from lightweight, high-grade aluminum creating a unique and distinct sound Cork gasket directs airflow through holes in the mute which produce a mellow, whispering tone Ideal for practice as it keeps overall sound down to a whisper <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.