Grade - O (gray doh)?
Gra - Do(grotto)?
I'm a noob.
I always thought they were gray-dohs..but when I watched an episode of Covert Affairs..Auggie pronounced the Rs1s as Grotto..so I was confused..I'm not sure I would trust that though..since the shows is about spies not headphones
Anyways JR pronounces them gray-doh so im pretty sure thats what it is