The Sony WM-AF50 is a compact cassette player that was released during the 1980s. It is notable for its combination of features, which includes both cassette playback and radio functionality. The device supports both AM and FM bands, allowing users to listen to their favorite radio stations in addition to playing cassette tapes. An important highlight is its auto-reverse feature, which enables the player to automatically switch to the other side of the tape without needing to manually flip it. The WM-AF50 also includes a built-in microphone for recording purposes and has a compact design that makes it portable. The sound quality is decent for its time, with controls for volume and tone adjustments.