Wednesday, Nov. 25, 2009


If you're one of the more than 220 million iPod users out there, hear this — if you can. Listening to music through earbuds for 90 minutes a day at 80% volume is the limit if you don't want to damage your hearing. Lower the volume to 70%, and you can boost listening time to 4½ hours. At full volume, you risk hearing loss after just 5 minutes of listening. What's full volume? In the U.S., some music players reach 115 decibels — comparable to a chainsaw or rock concert. In Europe, music players are limited to 100 decibels — like standing next to a pneumatic drill.