A mobile terminal comprising: a case; a camera module housing, wherein at least a portion of the housing is exposed through an opening in the case; a first lens unit disposed in the housing and having a plurality of lenses configured to focus light received through the exposed portion of the housing; a second lens unit disposed in the housing and configured to magnify an image formed by light passing through the first lens unit as a function of a distance between the first lens unit and the second lens unit; and a moving unit having dual shafts (250a, 250b) respectively connected to the first lens unit and the second lens unit and a moving element deforming in response to applied voltage to move at least one of the dual shafts in order to adjust the distance between the first lens unit and the second lens unit, characterized in that each of dual shafts (250a, 250b) includes: an outer shaft portion; an inner shaft portion disposed within the outer shaft portion and in contact with the corresponding moving element, wherein at least a portion of the inner shaft portion extends or retracts within the outer shaft portion as a function of the voltage applied to the corresponding moving element, wherein the inner shaft portion is coupled to one of the first and second lens units (220, 230), wherein the mobile terminal further comprises a control unit disposed between the first lens unit and the second lens unit, the control unit is configured to adjust the light passing through the first lens unit, and the second lens unit is configured to move up and down in order to compensate for an amount of light passed through the control unit. a case; a camera module housing, wherein at least a portion of the housing is exposed through an opening in the case; a first lens unit disposed in the housing and having a plurality of lenses configured to focus light received through the exposed portion of the housing; a second lens unit disposed in the housing and configured to magnify an image formed by light passing through the first lens unit as a function of a distance between the first lens unit and the second lens unit; and a moving unit having dual shafts (250a, 250b) respectively connected to the first lens unit and the second lens unit and a moving element deforming in response to applied voltage to move at least one of the dual shafts in order to adjust the distance between the first lens unit and the second lens unit, characterized in that each of dual shafts (250a, 250b) includes: an outer shaft portion; an inner shaft portion disposed within the outer shaft portion and in contact with the corresponding moving element, wherein at least a portion of the inner shaft portion extends or retracts within the outer shaft portion as a function of the voltage applied to the corresponding moving element, wherein the inner shaft portion is coupled to one of the first and second lens units (220, 230), wherein the mobile terminal further comprises a control unit disposed between the first lens unit and the second lens unit, the control unit is configured to adjust the light passing through the first lens unit, and the second lens unit is configured to move up and down in order to compensate for an amount of light passed through the control unit. an outer shaft portion; an inner shaft portion disposed within the outer shaft portion and in contact with the corresponding moving element, wherein at least a portion of the inner shaft portion extends or retracts within the outer shaft portion as a function of the voltage applied to the corresponding moving element, wherein the inner shaft portion is coupled to one of the first and second lens units (220, 230), wherein the mobile terminal further comprises a control unit disposed between the first lens unit and the second lens unit, the control unit is configured to adjust the light passing through the first lens unit, and the second lens unit is configured to move up and down in order to compensate for an amount of light passed through the control unit.