Ear warmers, ear cups or caps?

Don`t know the Norwegian name either. Anyway very popular this winter. Sold out in most of the shops. Our winter started at the end of October. Snow has been here since the first days of November. Still no signs of spring, so this a product I have learnt to like. Never had one before. Never wanted to have one either. Saw people at my age wearing them so why not me too. Very convenient under a cap that doesn`t cover your ears, dorsetb.