1,build-in scanning module 2,GPS,camera, RFID for options 3,WIFI, GPRS/GSM, Bluetooth interface ... and Security FeaturesStandardBluetooth V2.1+EDRExpansionInternal 3MegaPixel with 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,GSM27.10 Power ...