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Headphones with active noise cancellation technology can create anti-phase sound waves to cancel out outside noise, helping users concentrate better.
Video : Interesting Engineering
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The Sophisticated Technology Behind Noise Cancelling Headphones
VnExpress•21/07/2023
![[Photo] National Assembly Chairman visits Vi Thuy Commune Public Administration Service Center](https://vphoto.vietnam.vn/thumb/1200x675/vietnam/resource/IMAGE/2025/7/1/d170a5e8cb374ebcae8bf6f7047372b9)
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![[Photo] Standing member of the Secretariat Tran Cam Tu chaired a meeting with Party committees, offices, Party committees, agencies and Central organizations.](https://vphoto.vietnam.vn/thumb/1200x675/vietnam/resource/IMAGE/2025/7/1/b8922706fa384bbdadd4513b68879951)
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