Office work, typewriter, environmental sounds:
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The USB flash drive is inserted, removed
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General noise, Office work
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Read the, Insert the disk into the drive
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Disc read, Opens, closes the CD / DVD tray
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Franking machine
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Laser printer
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Room noise, write, read, Hard disk
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Manual copy machine
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Jet printer
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CD / DVD drive, disc read
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Computer mouse click
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Photocopy (photocopy)
★★★★★