The Sanyo RD-303 is a cassette tape deck manufactured as part of the Sanyo System 303 series, which was produced between 1980 and 1982 in Japan. The device was marketed as a component to work alongside other audio equipment in a complete sound system. It is recognized for its solid construction and reliable performance. The RD-303 features various playback and recording capabilities, making it suitable for both casual and more engaged listeners. The device's price at launch was around 1,448 DM when acquired as part of the complete system. It shares its design ethos with other models in the same series, providing a cohesive aesthetic across the lineup.