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Who Made That Earbud? - The New York Times
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A Brief History of Headphones – LSTN Sound Co.
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When Were Headphones Invented: The Complete History - Headphonesty
Pasadena brothers, who invented wireless headphone technology, hope to inspire, encourage next generation to pursue careers in science and technology - ABC7 Los Angeles
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A Brief History of Headphones – LSTN Sound Co.
The history of headphones and the beginnings of portable sound
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The first truly wireless earbuds are here, and they're awesome - The Verge
The history of headphones and the beginnings of portable sound
A Partial History of Headphones | Arts & Culture| Smithsonian Magazine
The history of true wireless earbuds: Here's what's changed over the last six years | Android Central
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