In principle, walkmans only work with earphones, I see CD players that need to be connected to a TV, there are still radios, but that feature is not important to me. I just want the machine to be quiet and not get stuck in the disc. The advantage is that you can play mp3 files, but audio cds are also okay. It doesn’t have to be loud because I wouldn’t use it to play music, but it should be either plugged in or battery powered.