The Sony WM-FX197 is a compact cassette player that combines the functionality of a cassette tape recorder and a radio tuner. It features an AM/FM stereo radio receiver, allowing users to listen to their favorite radio stations while enjoying the convenience of cassette playback. The device includes a built-in microphone for recording purposes, making it easy for users to capture audio on the go. The design emphasizes portability, featuring a lightweight and ergonomic casing that fits comfortably in the hand. The WM-FX197 also incorporates advanced features such as Auto Stop for cassette playback, ensuring the tape is not damaged when it reaches its end. The device is powered by batteries, enhancing its portability, and it typically includes a headphone jack for private listening.