>>251
いい大人のゼンハイザーが本気で作ったのはこちらになります
https://www.businessinsider.in/photo/52214569/Lets-start-with-the-Sennheiser-Surrounder-Technically-theyre-not-headphones-but-at-least-theyre-body-mounted-The-Surrounders-were-designed-to-offer-surround-sound-for-gaming-.jpg

凋落したのは日本だけだろうか？