The Sony WM-AF58 is a cassette player that stands out due to its integrated features, including FM/AM radio reception and a built-in microphone for recording. It is designed to be compact and portable, allowing users to enjoy music on the go. The device employs a slim design, making it easy to fit into pockets or bags. The cassette player supports Auto Reverse functionality, enabling continuous playback of both sides of a tape without the need for manual intervention. Users have the ability to adjust volume, balance, and treble/bass settings, enhancing their listening experience. It is powered by standard AA batteries, granting it decent playback time. The cassette compartment is accessible from the side, simplifying the process of inserting or removing tapes. The overall build includes a simple user interface with clearly labeled buttons for ease of use. The WM-AF58 was particularly popular during the late 1980s and early 1990s, reflecting a time when portable audio was rapidly evolving. Its integration of radio and cassette playback made it a versatile option for users who enjoyed different forms of media.