WM-FX707

The WM-FX707 is a slim metal-bodied radio Walkman from 1992 built around Sony's worldwide twin synthesizer tuner, which allowed separate station presets to be stored for home and travel use without constant retuning. On the cassette side it retained auto-reverse, Dolby B, and Extended Dynamic Bass Boost, while the tuner expanded FM and AM coverage into a more globally useful package. The overall body stayed slim and portable despite the added radio logic, giving it a more refined feel than Sony's simpler plastic FX models.

This is a good example of how Sony was making radio Walkman feel less like local utilities and more like genuinely mobile personal devices. The FX707 makes sense not because it is packed with dramatic features, but because it solves a very real annoyance for people who moved between places. It is a radio Walkman built for users whose routines had already become more fluid than the domestic cassette era that created the category.