WM-11

The WM-11 was the North American-market counterpart to the WM-22 and one of Sony's clearer budget-oriented Walkman models of 1984. Its upright plastic body, mechanical controls, dual headphone jacks, and AA-powered playback kept the player focused on the basics, with little to complicate the design or raise the price. It was a very plain cassette player, but one built with the confidence of a format that no longer needed to justify itself.

It shows how seriously Sony took the baseline once personal stereo moved beyond novelty. The WM-11 was not a stripped-down curiosity, but a real attempt to make the Walkman normal and available in North American retail. It matters because a product category becomes durable through models like this, not only through its flagships.