1)wifi, bluetooth,thermal printer 2)RS232,optional 1D scaner, rfid,camera,gprs 3)4000battery SPECShandheld pda with thermal printerOSCPU WINCE5.0,MOBILE6.0, support different global languages.S3C2442,ARM9, 400MHZMemoryFlash MemeoyExpansionMemory 64MB SDRAM 128MB NAND FLASH,Expandable 2G by expansion slotDisplayType sizetransflective TFT QVGA color; touch screen ,backlight3.5'',resolution 320x240 ...