... device also has a lot of other functions, such as voice communication, barcode scanning, image pickup, RFID, Wi-Fi, Bluetooth ... (optional)GSM/GPRS real time data transfervoice communication, , message sending / receiving, image pickuptouch screen & keyboardWifi & Bluetooth wireless transferWindows mobile 6.1 / ... Management (Supermarket, Branches) and so on. barcode+RFID+GPRS data collecting terminal