The Sony WM-F10 is a portable cassette player and radio combination device that was released in the early 1980s. Designed with an emphasis on convenience and portability, it allows users to enjoy both cassette tapes and FM radio broadcasts on the go. The device features a compact and lightweight design, making it easy to carry. It includes a built-in speaker, headset output for private listening, and a simple interface for tuning radio stations. The WM-F10 is powered by AA batteries, providing extended playtime for outdoor use. The player is notable for its user-friendly controls, which include a play/stop button, rewind, and fast-forward functions. It also has an automatic shut-off feature to conserve battery life. In terms of aesthetics, the device typically showcases a minimalist design with essential buttons clearly labeled.