Just play the children's favorite songs via the smart bluetooth function. Do you want Popsi & Krelle, Pippi Longstocking or other popular songs, then you can easily play these songs via e.g. Spotify. The activity box can play fun tunes and even laugh to the child. The child can also play and learn about shapes via the put-in-the-hole feature. A fun and educational toy that can activate the child for hours.