Are you a musician or do you love music then you need to use a custom musician earplugs.  If you don't use the earplugs, it will harm for your hearing damage. Because musical instruments produce a lot sounds.  If you listen the loud noise as a results you will fall into the hearing loss.
Visit the website for more information.
https://www.bigearinc.com/hearing-protection-in-the-movie-theatre
https://www.youtube.com/watch?v=zIt9oUdDr3o