The pen's main function is to point at things in the TipToi books and its integrated speaker explains the thing being pointed at, or plays a song or whatever the book is about. There is a huge catalogue of books for e.g. learning names of things in the kitchen, at a farm, fairy tales and even languages etc. It's great stuff and works well

There are different models and the newest one has a record feature as well as wifi (for asset downloads, versions before need a download companion app on the PC/mac).

Edit: fix typos