Water-shielding type mobile terminal apparatus

A mobile terminal apparatus comprising:

• a housing having an opening section in which an accommodated object is fitted;
• a lid covering the opening section, the lid comprising a protrusion which surrounds the opening section and shields the accommodated object from water, the protrusion being disposed on a surface facing the accommodated object;
• and
• a cover covering the lid, the cover being attached to the housing and thereby pressing the lid onto the housing, wherein
• the housing comprises a guide extending in a predetermined direction,
• the cover is slid along the guide and thereby attached to the housing, and
• the lid opens and closes around a rotating shaft extending in a direction in which the cover is slid.