The Onkyo TA-RW 66 is a cassette deck that was part of Onkyo's audio equipment lineup. It features dual well capabilities allowing for easy playback and recording of cassettes. The device is designed to deliver decent sound quality, supporting standard cassette tapes. It typically includes features such as auto-reverse playback and Dolby noise reduction for improved audio fidelity. Its design often reflects the aesthetic trends of the late 1990s with a focus on user-friendly controls and a clear display.