As a protogen I can confirm that Bose headphones fit perfectly well! : r/furry
Protogen Partial Fursuit
TikoWolfProtogens LED Protogen fursuit NO RESERVE
Protogen Suits (2 of 2) by KieliIndustries on DeviantArt
After a year my protogen suit of Aiko is finally finished! : r/furry
Protogen fursuit first boot up test ! - YouTube
Protogen Fursuit Suit Up - YouTube
For anyone on the fence or with sight issues, Protogen suits have the best vision in a suit you can get! This is just inner visor that supports the electronics : r/fursuit