high quality ,best price , av-in ,rear view , bluetooth .MP3 AND VIDEO . factory product gps navigtion ,and free IGo map well and ... ROM / 128MB SDRAMExternal memory: 1GB to 8GB, TF Card supportLCD screen: 7.0" TFT LCD, 800*480pixels resolution, backlight adjustable, touch ... -IN/Bluetooth handfree phone/wireless back-looking for inverse driving (rear camera)/testing speed by locomotive radar