Faulty air conditioning, vibration noise:
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Popcorn machine
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IPhone notification sound
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An electric toothbrush
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Electric wheelchair
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SMS notification sound
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Fan blade rotation, air cut
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On, Air conditioning, off
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Off, Old tv on
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Electronic melody for SMS alerts
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Spaceship freezer, defrost process
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Sound to start presentation
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Whatsapp notification sound
★★★★★