1)wifi,bluetooth,gprs, voice communication 2)optional camera,rfid,1D scaner,infrared,gps 4)IP54,source code,SDK free SPECSbarcode scanner terminalOSCPU MOBILE6.5, support different global languages.ARM926E, 533MHZMemoryFlash MemeoyExpansionMemory128MB SDRAM 256MB NAND FLASH,Extend(T-Flash): 2GDisplayType sizetransflective TFT QVGA color; resistive touch screen ,backlight3.2'',resolution 240*320 ...