... )wifi, bluetooth,printer 2)optional gps, gprs,barcode scanner, rfid,camera 3)4000mah battery 4)SDK,Sourcecode free SPECShandheld pda with ... NAND FLASH,Expandable 2G by expansion slotDisplayType sizetransflective TFT QVGA color; touch screen ,backlight3.5'',resolution 320x240 dpi ,sunlight viewableOperating Keys20 ...