Old computer keyboard:
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Computer mouse movement
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Photocopy (photocopy)
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The USB flash drive is inserted, removed
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Fan noise, Turning on the laptop, shutting
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Opening, closing the laptop cover
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Franking machine
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Computer mouse click
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Laser printer
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Read the, Insert the disk into the drive
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Computer interface, signal read information
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Closes the CD / DVD tray, Opens, disc read
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Office work, general noise
★★★★★