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Smart earplugs know when it's too loud
When it comes to the health of your hearing, how much noise is too much noise? Sometimes it's hard to know.
A pair of intelligent earplugs, however, can make that determination for you. In quiet environments, the Quietpro+ earplugs "open" so wearers can hear normally. When the noise level rises, the 'plugs automatically filter out the clamor while continuing to let speech through.
The earplugs, from Norwegian company Nacre, are already in use by the U.S. Army, special operations forces, Navy, and Marines, as well as NATO forces (the Air Force has its own ear-protecting gear). … Read more
