The Aiwa TP-S30 is a portable cassette player that was manufactured by Aiwa, a Japanese consumer electronics company. It was released in the 1980s and was designed for personal use. The TP-S30 featured a built-in cassette player, headphone jack, and a small speaker. It was powered by batteries and had basic playback controls such as play, pause, fast forward, and rewind. The player also had a recording function, allowing users to record audio onto cassette tapes. The Aiwa TP-S30 was a popular choice for music enthusiasts and portable audio playback.