The Pioneer CT-720 is a cassette tape deck that was manufactured by Pioneer Corporation. It was introduced in the early 1980s and was part of the CT series of cassette decks. The CT-720 features a dual-capstan mechanism for improved tape transport and playback quality. It has various functions such as Dolby noise reduction, auto-reverse playback, and manual tape type selection. The deck also includes input and output connections for connecting to audio systems or recording devices. Overall, the Pioneer CT-720 is a vintage cassette deck known for its decent performance and reliability during its time.