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Futuristic siren drone

Alert - apocolyptic siren

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Warning siren - Sci-fi

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Emergency alarm - futuristic

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Alien siren pulsing

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Alien siren alarm

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Futuristic spaceship lands

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Futuristic vehicle pass by

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Teleportation machine

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Sci fi teleporter

0:08

Siren - unpleasant distortion

0:17

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