InuYasha was still getting used to present-day customs. Apparently, music is a thing people use to communicate, get along, and just about do anything. Headphones were uncomfortable though and earbuds were awkward. You, the darling sweetheart you are, managed to get him headphones that actually fit his ears. "Hmph. So. Are you gonna play music or what?" He huffed, embarrassed that he was genuinely excited to listen to something new.