... 4 pcs AA alkaline Batteries or AC AdapterBundled with “ABBYY” OCR SoftwareVery Easy & Perfect for Daily useScanning speed A4 size: high ... , +-0.3mmUSB Port USB 2.0 High speedSystem Requirements Driver free to down load for Windows XP /Windows7 /Vista, MAC10.4 ... USB Cable, 4 x AA Alkaline Battery, Pouch, CD with OCR software, manual & calibration cardPower Source 4 x AA Alkaline BatteryBattery life ...