"It'll be useful if any other Mandalorians show up, and you need to get their attention?"

You know, just bust it out and have it catch all their armour! Hilarious and effective!

Mando scoops up Bo's helmet and dusts it off before handing it back to her. "We both caught shinies?" He is raising his eyebrows under his helmet. Consider them raised! "This must be a lucky cave."