This listing is for the SONY TCM-48 unit only. Playback, fast forward, rewind, pause, playback sound quality, and tape speed adjustment are all working. Recording with the internal microphone has also been confirmed. Recording with an external microphone has not been tested, but recording was possible by connecting a music player to the microphone input. The above operations have also been confirmed with an external power supply. The tape counter is not working due to a broken rubber belt. The exterior has some minor scratches and scuffs, but it is in good condition for an old product. Although everything except the tape counter is working, please understand that this is a product from the 1990s before considering a purchase.