D-F400

The D-F400 folded AM/FM radio into the late CD Walkman formula without making the player feel overly complex or compromised. It kept the compact body, G-Protection, and everyday usability of the standard models while integrating the tuner in a way that felt natural to the design.

That combination still made sense for the period. The D-F400 is part of the stage where portable audio is expected to cover more than one role without requiring separate devices for each. It handles that balance cleanly.