The Sony WM-AF56 is a compact and portable cassette player that was popular in the late 1980s and early 1990s. This device features a sleek design with a chassis that is lightweight, making it easy to carry around. It is equipped with a built-in radio tuner, allowing users to listen to FM/AM stations in addition to playing cassette tapes. The unit supports Auto Reverse functionality, enabling playback of both sides of a cassette without needing to flip it manually. The audio quality is complemented by a range of controls for adjusting the sound, including treble and bass settings. Additionally, the WM-AF56 includes features such as Dolby Noise Reduction to improve sound clarity and reduce tape hiss. The device typically runs on AA batteries, offering portability and convenience for on-the-go use. It is worth noting that this model was part of a wave of personal audio devices that emphasized mobility and ease of use, reflecting the changing landscape of how music was consumed during that era.