... camea, Finger printer reade2. Wifi WiFi for internet connection , 3G modem, GPRS, bluetooth connection3. Card reader: RFID card reader, ... and inner network connection/ wireless network card/ 3G internet Modem/ GPRSPower supplyAC 110V-240V,50-60Hz (customized) ... FoamOther OptionsUSB interface,Credit Card Reader,Keyboard,Barcode Scanner,USB port, Bluetooth Connection, Camera/Webcam,GPRS,WiFi etc ...