Thank you for viewing. I tried it out two or three times. I got busy and couldn't practice, so I stored it away. Operation confirmed. Disinfected. No problems at all. Since it's not unopened, please refrain from purchasing if you are sensitive to used items. I have test-played it, so I have cleaned and disinfected it, but after you purchase it, I recommend cleaning it again or replacing the mouthpiece. *Instant purchase is welcome! I will ship it as soon as possible, so please be sure to rate the item promptly upon receipt.