Jet printer:
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Hard disk, room noise, read, write
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Shutting, fan noise, Turning on the laptop
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Computer keyboard
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Repeatedly pressing a computer mouse
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Signal, interference, Modem connection
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Franking machine
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Opening, closing the laptop cover
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General noise, Office work
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Closes the CD / DVD tray, Opens
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Computer simulated laser
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Typewriter, Office work, environmental sounds
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Double click computer mouse
★★★★★