The Sony WM-FX 37 is a portable cassette player that was manufactured between 1991 and 1993 in Japan. This model is part of a larger series of Walkman devices, featuring a compact and lightweight design that allows for easy transportation. The player has a distinctive black body with salmon and orange accents, coupled with retro-inspired orange headphones. Its playback mechanism adheres to the traditional analog experience of cassette tapes, allowing users to fast-forward, reverse, and immerse themselves in the full album experience of magnetic tape. The WM-FX 37 operates on two AA batteries and was originally priced at approximately 179 DM. It has undergone refurbishment processes including new drive belts, calibrated playback speed, and maintenance of audio components to ensure optimal performance.