A mobile terminal including an output unit configured to output sound, an equalizer configured to adjust parameters of the sound output by the output unit, a display unit including a touch screen and configured to display a Graphic User Interface (GUI) including a graphical guide that can be touched and moved to adjust the parameters of the sound output by the output unit, and a controller configured to control the equalizer to adjust the parameters of the sound output by the output unit in accordance with a shape of the graphical guide that is touched and moved.