... to adjust the lightOthers featuresThe OCR recognition function, the fax on demand, the DV image transcription, the sound recording, protect the eye desk ... , USB data power line, article platen FeaturesThis scanner is the best one of all the portable A4 scanners . It has wide angle lens ... size of 6 pt, wihout any missing scanning. It is the best partner for using in office and any field for scanning ...