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First headphones were invented by Nathaniel Baldwin.
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The first radio headphones started being manufactured.
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The first dynamic headphones were invented by a german company called Beyerdynamic.
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Early HeadphonesIn consisted of moving iron transducers. In the 1950's, moving iron headphones were replaced by stereo headphones.
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John C. Koss produced the first stereo headphones in 1958.
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In the 1960's, Iron moving transducers where replaced with plastic cones.
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With the release of the Sony Walkman, headphones started to become smaller and more compact, so they could be easier to carry around with the Walkman.
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In the 1990's earbuds came out, which revolutionized the headphone undustry. Having the sound go directly into your ear increased the quality of the sound.