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Smithsonian on Twitter: "We don't mean to ruin your Monday but this turns 40 today. In 1979, the Sony Walkman TPS-L2—the world's first portable music player—went on sale. This one is in
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Old Sony Walkman Cassette Player with Open Lid Editorial Image - Image of entertainment, equalizer: 125367385
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Sony Walkman WM DC 2 Personal Cassette Player Editorial Stock Photo - Image of stereo, metal: 200186273
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Smithsonian Collections Object: The Sony TPS-L2 “Walkman” Cassette Player, National Museum of American History | Smithsonian Music
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