New Concept English Listening

New Concept English Listening.
New Concept English is very suitable for other people learn English by self learning.
It can play audio and synchronize audio and subtitle of the lesson.
it include 4 books which level cover from primary to fluent.
it is only running at download and play model.
You can set only WiFi to download audio files,that can help to save cost of the data flow from mobile wireless network.