... 802.11b/g/n BLUETOOTH 2.0 3G via USB dongle System Memory RAM: 512MB support T-flash ... card expend to 32GB Sound System Audio build-in nice stereo ... /O Ports 1 x MINI USB (OTG) 1 x Standard USB 2.0(support HDD, FLASH DRIVER,MOUSE,KEYBOARD,ETHERNET ... support external equipments "can use 3G dongle ,usb HDD, USB flash disk,Ethernet,mouse,keyboard and other equipments via ...