The most effective training is achieved when using the computer version of the course (multimedia course), since when listening to the material you can visually fix the spoken words, remembering not only their sound, but also the spelling. This option more than 2 times improves learning speed compared to regular listening. In addition, using a computer for training, you can, if necessary, view theoretical material, as well as print the desired lesson and use the printout when listening to a regular player, following the text with your eyes (for example, on the subway, train, plane).