The Evolution of Headphones [Infographic]
Dating back to 1919, old battery-powered radio headphones eventually evolved into cardboard versions in 1958, when audiophiles were introduced to a full-spectrum of sound with a rich set of highs and lows. But it wasn't until the introduction of the Walkman in 1979 that headphones truly evolved into something that all music fans and consumers seemingly needed, as music-on-the-go pretty much became the standard.
In-ear buds and wireless headphones eventually made their debut in the 1990s, which ushered in today's selection of portable listening gear aiming to fit a wider spread of audio needs such as making phone calls, exercising, or tuning out for a long flight.
This infographic details more of the evolution of headphones as we know them today.