STAR WARS The Black Series Bo-Katan Kryze Premium Electronic Helmet, The Mandalorian Roleplay Collectible, Toys Ages 14 and Up

Q: What can the helmet do?

The viewfinder drops down and lights up when it does - otherwise, it doesn't do much but look awesome. :) Smaller fit than the Din Djarin helmet from the Black Series.

Q: Any room for wearing glasses inside?

I have not opened my helmet yet, it is still sealed in the box. If I had to make an educated guess I would say that yes, glasses should be able to be worn inside of the helmet. All of the helmets that I have tried on all had enough room including Fett, Vader, and a trooper.