... .1 or 2.2 intelligent operating systemSupport external hitch 3G USB-DONGLE wireless network cardSupport MKV,AVI,RM,RMVB,MP4,MOV,VOB ... Support 128MB-16GBWIFI Support, 802.11b/g3G Support External 3G USB DongleBluetooth Do Not SupportCamera 1.3 Mega Pixel ( Support 0 ... Support HDMI Vedio OutputOTG Digital Support Harddisk,digital Camera,Mobile,USB,Card Reader and able to Connect Printer, etc. OTG ...