Handheld mobile data terminals, support GSM/GPRS,GPS,camera,telephone. Etc. Descriptions:With the benefit ... -write range: 3cm-7cmWireless Lan Data: GSM/GPRSExpansion Slots: SAM/SIM/TF cardsOptional Function modules: GPRS, GPS, RFIDAssistant tools: Calendar, Calculator, ... , LCD screen, Personalized keys, Mobile phone, Camera, Support GPRS, HF RFID read-write, GPS antenna Handheld Rfid GPS reader