... camera, RFID for options 3,WIFI, GPRS/GSM, Bluetooth interface handheld pos terminal/ POS terminal with GPRS/GSM ... Communication mode: Wi-Fi communication, GPRS / GSM communication, Bluetooth communication8. Open platform to provide the SDK software interface, customer ... 0.01m/sExpansionInternal HF RFID Read WriteExpansionInternal Wireless Communication module GSM/GPRS,Support GSM/GPRS Class10,GSM27.10 ...