The Sony WM-EX 672 is a compact cassette player designed for portable use, offering a blend of convenience and sound quality. It features Dolby B noise reduction for improved audio clarity and reduced tape hiss. The device is equipped with a built-in stereo microphone for recording, as well as playback capabilities for standard cassette tapes. The body is designed to be lightweight and easily portable, making it suitable for music enthusiasts on the go. Additionally, it includes features such as a built-in speaker, an LCD display for tracking information, and a simple control layout for easy operation. The power source is typically provided by AA batteries, ensuring extended usage without frequent recharging. The WM-EX 672 often comes with a headphone jack, allowing users to enjoy music privately. Its design aesthetic includes a sleek and modern look that appeals to various users.