A mobile telephone in which a camera portion is rotatably provided in a coupling portion for rotatably coupling a first casing and a second casing to each other, and a main display part and a manipulating part are provided in a casing surface and is hidden when the first and second casings are closed relative to each other. A sub-display part and an image pick-up button are provided in a surface of the first casing and are always exposed. A switch is provided for changing over the display condition of the sub-display part between a camera mode and an equipment status display mode, whereby the image pick-up by the camera portion can be simply carried out with no affect resulting from any folding motion of the casings.