Safer Sound

  • October 25, 2011

These earphones are equipped with a filter circuit powered by the audio signal itself. This limits average sound levels to a maximum of 85 decibels without attenuating soft sounds or audibly distorting louder sounds.

Product: EP-100 Earphones
Cost: $35
Availability: Now
Source: www.dblogic.com
Companies: dBLogic

Uh oh–you've read all five of your free articles for this month.

Insider Premium

$179.95/yr US PRICE

More from undefined

Want more award-winning journalism? Subscribe to Insider Premium.

  • Insider Premium {! insider.prices.premium !}*

    {! insider.display.menuOptionsLabel !}

    Our award winning magazine, unlimited access to our story archive, special discounts to MIT Technology Review Events, and exclusive content.

    See details+

    What's Included

    Bimonthly home delivery and unlimited 24/7 access to MIT Technology Review’s website.

    The Download. Our daily newsletter of what's important in technology and innovation.

    Access to the Magazine archive. Over 24,000 articles going back to 1899 at your fingertips.

    Special Discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

    First Look. Exclusive early access to stories.

    Insider Conversations. Join in and ask questions as our editors talk to innovators from around the world.

You've read of free articles this month.