A great tool helping you to learn languages by utilizing videos and subtitles. - Automatically do video clip repeating , auto pause for your recite,shadow reading ... No tedious conducation while try to keep up with the playing video. - Use any video file ,any time-synced subtilte file which you like and can get . - Can adjust repeat times on dialog, section, whether preview subtitles, how long pause for reciting... lot's of strategies you can organize to suit your learning curve.