Batei Ungarin is a term that refers to a type of religious community in Jewish culture. It is also known as the "Hungarian Houses" and they are basically a group of people who decide to live in a community where they can follow their religious beliefs together.
Imagine you and your friends like playing a particular game, but your neighbors don't really like that game. So, you and your friends decide to build a big house where you can play that game without bothering anyone. That house would be your own special place where you can do what you like with your friends, without causing trouble for anyone else.
Batei Ungarin are kind of like that, except they are built for people who share the same Jewish beliefs and want to live together in a like-minded community. They usually have their own buildings for worship and other activities, and everyone who lives in the community follows the same set of religious rules.
It's important to note that these communities have different rules and practices than the broader Jewish community, and not all Jewish people choose to live in these communities. Think of it like different groups of friends who have different hobbies and interests - everyone is different, and that's okay!