Phones and music players on sale in the UK will now warn you if you're playing your music too loud.
Some gadgets and phones can play music as loud as a plane taking off - and that can damage your hearing forever.
A new ruling means music players will go as loud as 85 decibels which is considered a safe volume.
If you want to go louder than that you'll be shown a warning - and the warning will pop up again after every 20 hours of listening.
This chat is now closed. Thanks for all of your comments.
"I think there should be warnings, as sometimes you don't know how loud a song will come out on your gadget and it might hurt your ears."
Elizabeth, Kent, England
"I don't think music players should have a limit. The person should be responsible for their own music and how loud they want it. It's not much good if you're at a party and you're trying to play music but the volume isn't loud enough!"
Skyliee, Surrey, England
"I think it will be a bit useful but only if people don't ignore the warning, if they do then it will be of no use at all."
Zobia, Manchester, England
"It's a bad idea because if they need warnings, why are they making the MP3s that loud then?'"
Luke, Leeds, England
"I don't think there should be a limit because I like listening to loud music and some songs don't sound right when there quiet."
Lucy, Wiltshire, England
"I had been listening to loud music and my ear drum moved from its original position because of it, I had to have a 6 hour operation to fix it so I think it would be a good idea to have warning systems on your MP3 players."
Yousif, London, England
"No, I think it is a bad idea because I have hearing aids and I need to have the music on maximum on my mp3 player to hear the music properly!!"
Belinda, London, England
"I think that we should decide for ourselves if our music is loud or not because I like loud music."
Burakku, London, England
"I think this is definitely a GOOD Idea because I don't want to damage my hearing."
Freya, Surrey, England
"I think it's a great idea. Quite a lot of people I know listen to things to loudly and people can lose some of their hearing because of it!"
Aela, Fife, Scotland
"I agree with this because if you listen to your music too loud then you will have a hearing problem. Great idea!"
Samantha, Oxford, England
"I think it's a great idea as too many people play their music loud and I can hear it blaring through their earphones."
Rachel, North Lanarkshire, Scotland
"I think they're wrong because music is brill loud!"
"I think music should have a volume limit."
Millie, Stockton Heath, England
"I think music should have a limit because my sister plays her music really loud and she never seems to hear the jobs we ask her to do!"