The Sony WM-F22 is a portable cassette player that combines the functionality of a basic cassette player with an AM/FM stereo radio. Released in 1985, it follows the expected design lineage of earlier Sony Walkman models, albeit with some significant internal changes. The device offers a compact form factor that is slightly thicker than its predecessor, the WM-F9, while retaining an outline that is similar. Key features include the ability to play both normal and chrome/metal cassette tapes. Notably, some features found in previous models, such as 'cue' and 'review' winding modes and an LED indicator for FM stereo reception, were omitted in the WM-F22. This model utilizes a simpler generic tape mechanism, which has been used in various Sony products over the years and lacks some of the more sophisticated elements of earlier models. The radio dial leverages a flexible plastic toothed rack instead of the traditional cord drive, reflecting the cost-saving measures taken during production. The WM-F22 represents a shift in production practices as it was manufactured in Malaysia, indicating a move towards more economical manufacturing while still delivering a portable music experience.