Opens, closes the CD / DVD tray:
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Repeatedly pressing a computer mouse
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Signal, interference, Modem connection
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Fan noise, shutting, Turning on the laptop
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Computer keyboard
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Turn off the old monitor, Turn on
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General noise, Office work
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Closing the laptop cover, Opening
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Laser printer
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Signals, Computer interface
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Typewriter, environmental sounds, Office work
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Double click computer mouse
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Franking machine
★★★★★