You can watch Esumozu all the videos of the official video sites in the app. Video that can be downloaded audio, you can download the audio file with one click. You can enjoy the "while caught in the strap on the train," "while will lie in the bedroom where the smartphone in airplane mode" save to S. Morse seminar the battery of the smartphone.
It is also housed organized column for each category, such as strengths and sense. The column also less be re-read from the first and "was it how I that column?" Because it is possible to mark a "favorite".