A mobile terminal, comprising: a wireless communication processor configured to provide wireless communication; a display; a first camera configured to capture a still image and a second camera configured to capture a video image at overlapping capturing times in a preset simultaneous shooting mode; and a controller is configured to: control the display to display a preview image in which a first preview image by the first camera overlaps with a second preview image by the second camera when a touch input is applied to an icon corresponding to the preset simultaneous shooting mode, wherein a transparency setting bar for being set to a transparency of the preview image is displayed on the display, when a preset touch input is applied to the transparency setting bar, adjust the transparency of the preview image, wherein transparency of the first preview image by the first camera and transparency of the second preview image by the second camera is adjusted at the same time in response the preset touch input, in response to a preset user input, generate a composite image including the still image captured by the first camera and the video image captured by the second camera, and display the composite image on the display. a wireless communication processor configured to provide wireless communication; a display; a first camera configured to capture a still image and a second camera configured to capture a video image at overlapping capturing times in a preset simultaneous shooting mode; and a controller is configured to: control the display to display a preview image in which a first preview image by the first camera overlaps with a second preview image by the second camera when a touch input is applied to an icon corresponding to the preset simultaneous shooting mode, wherein a transparency setting bar for being set to a transparency of the preview image is displayed on the display, when a preset touch input is applied to the transparency setting bar, adjust the transparency of the preview image, wherein transparency of the first preview image by the first camera and transparency of the second preview image by the second camera is adjusted at the same time in response the preset touch input, in response to a preset user input, generate a composite image including the still image captured by the first camera and the video image captured by the second camera, and display the composite image on the display. control the display to display a preview image in which a first preview image by the first camera overlaps with a second preview image by the second camera when a touch input is applied to an icon corresponding to the preset simultaneous shooting mode, wherein a transparency setting bar for being set to a transparency of the preview image is displayed on the display, when a preset touch input is applied to the transparency setting bar, adjust the transparency of the preview image, wherein transparency of the first preview image by the first camera and transparency of the second preview image by the second camera is adjusted at the same time in response the preset touch input, in response to a preset user input, generate a composite image including the still image captured by the first camera and the video image captured by the second camera, and display the composite image on the display.