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![ObsoleteSony Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1647428363965935617.png) Obsolete Sony [@ObsoleteSony](/creator/twitter/ObsoleteSony) on x 159.8K followers
Created: 2025-07-22 07:00:00 UTC

In 1987, Sony introduced the Walkman WM-51, which featured permanently attached headphones that could be wound and stored within the device. It had auto-reverse, Dolby B NR, and supported various tape types.

![](https://pbs.twimg.com/media/GwcPDmKWYAAYr4S.jpg)

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