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1919 headphones originated from the earpice that were the only way to listen to audios untill amplifiers were made
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Germans invented the first gynamic headphones
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After world war two platten bars were made
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A bass jazz musicial John C Koss created the first stereo headphones
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Increase of headphone use. weighed 3-5 pounds
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first celebratie sighnature headphones were Koss Beatlephones
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the koss headphones were first electronic
