... scanning module 2,GPS,camera, RFID for options 3,WIFI, GPRS/GSM, Bluetooth interface 4,GPS POS terminal handheld pos terminal/GPS POS terminal with GPRS/GSM/wifi ... LED flashExpansionInternal GPS:Channel 48,Accuracy 2.5m,In motion 0.01m/sExpansionInternal HF RFID Read WriteExpansionInternal Wireless Communication module GSM/GPRS,Support GSM/GPRS Class10 ...