Thank you for viewing. This is a Lonesome Carboy audio system that was popular in the Showa era. The KP-202G (cassette deck) does not have an auto-reverse function. It could play, fast forward, rewind, and select tracks. The CD-5 (equalizer) allowed for frequency switching and sound quality adjustment. The GM-4 (amplifier) was confirmed to produce sound. Please note that this audio system is over 40 years old, so there is no guarantee of future functionality. I will sell it to someone who will take good care of it. Thank you.