Email message sound:
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Off, humming fan, Computer turning on
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Android notification sound
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Read, Hard disk, spin
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Vibration noise, Faulty air conditioning
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Email message sound
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Electronic melody for SMS alerts
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Exhaust fan
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Air conditioning, on, off
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Clothes dryer
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Whatsapp notification sound
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Defrost process, Spaceship freezer
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Air conditioning (outdoor unit)
★★★★★