Disclosed is a mobile terminal including a terminal body; a first module detachable from a back surface of the terminal body; and a printed circuit board, wherein the back surface of the terminal body includes a first recess to receive the first module, and wherein the first module includes a contact terminal configured to contact the printed circuit board through a connector having one or more electrode regions such that the first module is electrically connected to the printed circuit board when the first module is received in the first recess.