Teenagers are risking their hearing by playing their MP3 players at high volume, according to a poll.
Experts are warning that some music players can top 100 decibels when played at full volume, which can damage hearing in 15 minutes.
Long-term exposure to 80 to 85 decibels can also lead to hearing loss, they warn.
A survey -- out today -- of more than 4,400 people worldwide aged 14 to 65, was carried out by the Hear the World campaign.
Some 45pc said they listened to their MP3 player every day and 9pc always put the volume as high as it will go.