This is a mini-component stereo system that my family used to own. It wasn't working, but an acquaintance had the same model, so I borrowed their remote to try it out, and it mostly worked. I had an unused learning remote, so I bought it for 1000 yen. Although not all functions are available due to button limitations, I've set it up so that it mostly works. Actual operation check: The built-in CD player did not work. Played music files (MP3 and WMA) from a USB drive created on a computer. FM/AM tuner reception is OK. Connected the DVD/CD player I'm also selling to the AUX input, and played music from commercial CDs and CD-R discs containing MP3 files; the sound quality was excellent. As a result, most of the push-button switches don't work, but it works fine using the remote control. Using the remote control, I was able to adjust the sound quality equalizer, D-BASS, clock settings, sleep function, volume, radio frequency, tuner, USB, AUX switching, and other functions. I have made a note of these functions, and it will be included. Included items: Mini-component main unit: Kenwood C414 Power adapter Power cord Replacement new remote control and notes Instruction manual Thank you.