Thank you for viewing. This is the personal karaoke system ON STAGE PK-84. It has 800 built-in songs. Operation has been confirmed. You can check the song list on the internet. I used it with care, so it's in good condition. I hope to sell it to someone who will take good care of it. Since it is a used item, no returns or refunds are accepted. Please refrain from purchasing if you are concerned about this. Thank you for your consideration.