Feature: Win. CE 5.0 operation system RS232,USB, GPRS, WIFI, Bluetooth communication optional 128M memory built in ... Feature:Win. CE 5.0 operation systemRS232,USB, GPRS, WIFI, Bluetooth communication optional128M+128M memory built in, ... standard (11Mb/s-54Mb/s)GPRS(Optional)GSM/GPRS data communication moduleBluetooth(Optional) InterfaceRS232 or USB connectionBARCODE DECODING (2D Optional) ...