... 2GB-8GB built-in Flash Memory, support 2G-16G external Micro SD card(4) Support HD 720P MKV,AVI,RM,RMVB,MP4 ... -disk,MP3,MP4,Mouse,etc(8) Support external 3G USB-DONGLE wireless network card(3G card or USB-Dongle should buy separately)(9 ... FlashFlash Memory :2GB~8GBBuilt-in RAMROM:DDRII 256MBCapacity ExpansionSupport TF Card,capacity 128MB~16GB Power SupplyBuilt-in 3.7V@4000mAH Lithium ...