I've used this for about one or two months, but I'm selling it now because I don't use it anymore. It plays music, but it's a bit loud. I used it to swing and put my baby to sleep. It helped me a lot because my baby would fall asleep while swinging. It can be folded. There is a manual, but it's in Chinese. I've attached a translated version as an image. The retail price was 18,900 yen.