Peach bubble tea, 저게 뭐예요?

Bubble tea is pretty popular here in South Korea. This was my second time trying it and I had peach-flavoured bubble tea. The little black round berries in the bottom of the bubble tea (they taste a bit like gelatine candy) are tapioka, my friend said. I love these, they are pretty cheap, fruity and filling.
Yum!
Btw, for those of you who can read hangul, but don’t know what this means;
저게 뭐예요? = What is that?