... design 2.RFID cards/tags,barcode scan, fingerprint,WiFi/GPRS/GSM/Bluetooth/PSAM/GPS/Camera/IP64(dust-/wafer-proof) Model:C5000W ... @533 MHz Memory: 128 MB RAM/1GB Flash,Expansion Memory:4G TF (standard), maximum 32GInterfaces: USB 2.0, RS232Physical characteristicsScreen: 3 ... Li-ion battery, Usb cable, RS232 serial cable, Touch stylus, 4G microSD (TF) card, Hand strap, Carrying case, AC adapter, ...