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Device Helps iPod Users Avoid Hearing Loss |
Researchers have developed a device that could help protect people from hearing loss: It flashes red when a music player or lawn mower emits deafening noises. Say, you're near a tractor and worry the noise is loud enough to cause ear damage. Simply press your thumb on the handheld device's sound port to see whether the sound is too loud. Likewise, you can press your iPod's ear buds against the port to know whether you ought to turn the volume down.
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