I agree with kehaulani. I really like my silent brass system for trumpet. It allows me to practice as long as I like, whenever I like. It must be said, high quality headphones are a must with this system; they make all the difference. I find, after removing the silent brass, I can play softer and sweeter than ever with a beautiful tone; just my experience. I like the silent brass so much, I just bought a silent brass mute for flugelhorn to use with the same system.