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Here is a look at the history of the Sony Walkman, a device created in 1979 by Masaru Ibuka and Akio Morita that ushered in the era of portable music.
Sony Group Portal - Product & Technology Milestones−Personal Audio
Sync Originals The history of the Walkman: 35 years of iconic music players
Walkman Story: The Early Years of the Iconic Personal Cassette Player
Walkman Story: The Early Years of the Iconic Personal Cassette Player
Sony Group Portal - Product & Technology Milestones−Personal Audio
From the Archive: A short history of the Sony Walkman - ICON Magazine
10 Facts About the History of the Sony Walkman That Bring you Back in Time - Catawiki
The History of Portable Music Players
Walkman History - Discontinued Cassette Walkman! - SGNL By Sony
In Remembrance Of: A History of the Walkman
Sony Group Portal - Product & Technology Milestones−Personal Audio
Calaméo - History Of Walkman Infographics
Today in Music History: Sony introduced the Walkman