You can thank your old Sony Walkman for ushering in the era of portable entertainment

It may look like an antique by today's standards, but Sony's personal cassette player paved the way for the iPod and the subsequent ability to stream songs, TV shows and movies from our smartphones.
It may look like an antique by today's standards, but Sony's personal cassette player paved the way for the iPod and the subsequent ability to stream songs, TV shows and movies from our smartphones.

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