... Audio: 0.5 watt,Input method: Touch input and keyboard inputKeyboard: Numeric (Full alphanumeric is optional) EnvironmentalEnvironmental sealing: IP64Operating temperature: -20 °C ... 2 mega pixels, 2048 (H)*1536 (V), QXGA6. All alphanumeric keypadStandard Accessories4,000 mAh Li-ion battery, Usb cable, RS232 ... barcode scanner, Fingerprint indentification/collection, please kindly contact us for details