WM-7

The WM-7 was Sony's first Walkman to replace direct mechanical button linkages with full electronic logic control. Released in 1982, it used circuit-controlled transport functions rather than purely physical switching. That change made auto-reverse possible, allowing the tape to switch directions automatically at the end of a side, while Dolby B noise reduction reduced playback hiss and a wired remote added basic control away from the main unit. A hold switch helped prevent accidental presses and underlined the more convenience-focused design.

Sony was beginning to ask whether a Walkman could feel not only smaller, but more refined. The WM-7 was aimed at listeners willing to pay for convenience and less friction, especially when listening for long periods without constantly handling the player. It helped open a high-end branch of the line where electronics, not just mechanics, became part of the appeal.