The WM-F2 from 1982. This Walkman boasted an FM stereo tuner and the ability to record. In 1984, the WM-F5 was released. It was Sony's first "Sports" Walkman model. It was made of tough plastic ...

In 1984, Sony even released the WM-F5 – a Walkman model that came with a more rugged splashproof chassis and a pair of in-ear headphones (most other models came with on-ears), so you could use ...