1. A mobile terminal, comprising: a display; and a microprocessor configured to: display video content and a progress bar related to the video content on the display, receive a touch input for selecting a point of the progress bar, analyze a sound included in the video content related to the touched point and display the sound as text in a first region adjacent to the progress bar, display an extraction area including the touched point on the progress bar, wherein the extraction area indicates information about the text, display an image corresponding to the extraction area in the video content in a second region adjacent to the progress bar, change at least one of a range and a number of the extraction area according to a drag length in a downward direction of the touch input, wherein the extraction area includes a first extraction area including the touched point, a second extraction area adjacent to the first extraction area, and a third extraction area adjacent to the second extraction area, increase the at least one of the range and the number of the extraction area in order of the first, second and third extraction areas according to an increase of the drag length in a downward direction of the touch input, and increase at least one of a range and a number of the text corresponding to the extraction area and a number of the image corresponding to the extraction area.