1.Android 2.1/2.2 OS. 2.7.0 inch 800*480-TFT High Definition Resistive Touch Screen 3.Support WIFI 4.Support external 3G Features:7.0 inch 800*480-TFT High Definition Resistive Touch ScreenANDROID 2.1 or 2.2 intelligent operating systemSupport external hitch 3G USB-DONGLE wireless network cardSupport MKV,AVI,RM,RMVB,MP4,MOV,VOB,DAT,FLV,3GP of High Definition 720P formats video playingSupport MP3, ...