Nintendo released NES controllers for Switch here in the states, and they're pretty much 1:1 with what the old controllers looked like/provided. The same goes for the Famicom controllers for Switch in Japan. Nintendo went through a lot of trouble to not just make the controllers look the part, but play the part as well.
The microphone on top of the controller isn't just for show. Just like with the original Famicom controllers, the microphone actually works! There are some games in the Switch Online Famicom collection that use the mic, even if just in minuscule ways. Nice to see Nintendo go the extra mile!