The Sony WM-EX 922 is a compact cassette player that was part of Sony's line of portable audio devices, designed for music enthusiasts who appreciated the convenience of cassette tapes. This model features a sleek and lightweight body, allowing for easy portability. It incorporates advanced playback technology for improved sound quality and reliability. Key specifications include a Dolby B noise reduction system, allowing for clearer playback of cassette tapes by reducing background noise. The device is equipped with a battery life of up to 30 hours on standard AA batteries, enabling extended listening sessions. Additionally, it features an auto-reverse function for uninterrupted playback. The WM-EX 922 also has a headphone jack for private listening, along with a built-in speaker for casual use. Its user-friendly interface includes basic playback controls such as play, pause, rewind, and fast forward. The design also features a clear display for easy monitoring of tape position and battery level.