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en.wikipedia.org/wiki/Nathaniel_Baldwin

Nathaniel Baldwin (December 1, 1878 – January 19, 1961) was the inventor of an improved telephonic earphone amongst many other inventions, and a supporter of the early Mormon fundamentalist movement. "Headphones", two telephonic receivers on a headbow, were already in use ... He used this to invent a more sensitive telephonic receiver in 1910 and sold ...

en.wikipedia.org/wiki/Headphones

Headphones are a pair of small loudspeaker drivers that are designed to be worn on or around ..... Extended periods of exposure to high sound pressure levels created by headphones at high volume settings may be damaging; however, one  ...

coolmaterial.com/roundup/history-of-headphones

1958 – John C. Koss changed the headphone game in a way that would make Dr . Dre jealous. In 1958, Koss created the first stereo headphones (Koss SP-3) ...

www.smithsonianmag.com/arts-culture/a-partial-history-of-headphones-4693742

Mar 19, 2013 ... However, there's not a singular figure or company who “invented” the headphones, but a few key players who brought them from military bases ...

visual.ly/community/infographic/technology/history-headphones

1937 German company Beyerdynamic invented and produced the first dynamic headphones, the DT-48, which are still in production today. Uptake was patchy ...

mashable.com/2012/09/26/headphones

Sep 26, 2012 ... Invented in 1910, headphones have become an increasingly important tool for individualized media consumption, especially portable media.

www.stuff.tv/features/headphones-complete-history

Dec 24, 2013 ... Fundamentalist Mormon and engineer Nathaniel Baldwin invented the first pair of audio headphones on his kitchen table in 1910. His idea ...

www.nytimes.com/2014/05/18/magazine/who-made-that-earbud.html

May 16, 2014 ... Thomas Edison attached stethoscopelike headphones to his phonograph machine, which played sound off wax cylinders. Some machines ...

www.quora.com/Who-invented-earphones-headphones

Stethoscopes were one of first in-ear devices. In the 1850s, they were invented for listening to a patient's heart and lungs, and Thomas Edison used them wit...