Computer simulated laser:
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Room noise, read, write, Hard disk
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General noise, Office work
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Photocopy (photocopy)
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Turn off the old monitor, Turn on
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Turning on the laptop, fan noise, shutting
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Computer interface, alarm
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Opens, closes the CD / DVD tray
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Franking machine
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Computer keyboard
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Double click computer mouse
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Computer mouse click
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Computer mouse movement
★★★★★