1910 – Nathaniel Baldwin began manufacturing the first modern headphones. He crafted them in his kitchen and sold them all to the U.S. Navy. This was the first time a pair of cans resembled something you’d see today. Baldwin never patented them, however, because he was an idiot.
1937 – The DT-48’s from Beyerdynamic became the first dynamic headphones to hit the market. Though it would be a few decades before electrostatic headphones came into play, this was obviously a huge leap forward in the can story. Dynamic headphones are, to this day, the most popular type on the market.
Nathaniel Baldwin invented the first headphone in 1910. The first headphone or earphone was made from leather, ceramics, copper and rubber. John C. Koss in the year 1958 invented the first stereo headphones.