... IN ONE design: Wifi, Bluetooth,GPRS,GPS, Camera, PSAM, RFID card reader, barcode scanner ALL IN ONE design: GPS,GPRS, BLUETOOTH, PSAM ... MHz Memory: 128 MB RAM/1 GB FlashExpansion Memory:4G TF (standard), maximum 32GInterfaces: USB 2.0,RS232Operating System:Windows Embedded ... V/4,000 mAh) Expansion slots: SIM/SAM/Micro SD (TF) cardIndicator: LEDAudio: 0.5 wattInput method: Touch input and keyboard ...