10 Chinese essential songs in 1 sound book! Corner of each book is rounded so that kids can easily grab! Love the ON/Off button at the back (so that mama can control hahaha)! check out the speaker quality too! Compared to market soundbooks average speaker, it is much bigger and we made sure that the sound is not too big (85 db below) It is my girls favorite book, so I specially asked Pinkfong HQ to let us sell it! Come and try out at the beauty n the biz! You and your little one will love is just like my girls.