The second is noise sensitive emergencies, like a break-in or mass shooting.

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Plus, it's ultra quiet, which makes it perfect for even the most noise-sensitive creative environments.

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Additionally, these products are specifically engineered to be ultra-quiet, which make them ideal for even the most noise-sensitive working environments.

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Around 17, 000 people will be living within the so-called "noise-sensitive" zone once the airport is built, and 1, 000 will have to be re-housed as the hamlets of Vermandovillers and Lihons are razed to make way for the runway.

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"I'm very sensitive to noise, " she said in her Yorkshire accent, before apologizing for having to change things about before she could start properly.

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Unless these systems are designed carefully, the transmitted signal can cause noise in the receiver, making it not nearly as sensitive.

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