The Sanyo RDW-566 is a double cassette tape deck that was part of the complete Sanyo System 566, produced between 1985 and 1987. This model was designed to cater to users who sought to enjoy the convenience of cassette tapes during that era. As a component of the larger audio system, the RDW-566 complemented other devices such as the integrated amplifier, tuner, and record player that made up the complete system. While specific technical specifications are limited, the model is recognized for its functionality within the Sanyo brand's product lineup, showcasing the brand's commitment to providing quality audio solutions during the mid-1980s.