... ).The configuration can be extended include:Contactless card reader(RFID), WIFI, 1D/2D barcode scanner, bluetooth, Camera, CDMA, 3G ... Card2Expansion SlotMini SD Card SlotUSB1 USB (OTG type,Host port,Client port),1 USB(RS232port)PrinterHigh Speed, High resolution, thermal ... InterfaceGPRS/CDMA/WCDMA 3G/TD 3G/BluetoothBTClass2.0-EDR/WIFI 802.11 a/b/gGPSSiRFstarIII GSC3e/LPCamera3.1 M ...