They were already around 50 years ago: https://www.cbc.ca/news/technology/apple-iphone-headphone-jack-history-1.3755120 https://www.cbc.ca/news/technology/appl

They were already around 50 years ago: https://www.cbc.ca/news/technology/apple-iphone-headphone-jack-history-1.3755120 https://www.cbc.ca/news/technology/apple-iphone-headphone-ja...