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A Speaker|あなたにだけ聞こえるパラメトリック・スピーカー「エー」 A Speaker | Parametric speaker you hear only “A”

https://youtu.be/KseluEskohQ

エーは、部屋に複数の人がいてもあなたにだけ聞こえる指向性スピーカー。
A is directional speaker which can hear only by you even if there are multiple people in the room.

レーザービームの様に狭い範囲のサウンドビームを生成し、ほかの人に聞かれることなく、あなたの耳に直接お届け。
Generate a narrow range of sound beam like a laser beam, delivered directly to your ear without being asked by others.

 

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