A cellular phone has a first cabinet (9) and a second cabinet (90). The cabinets (9, 90) are hinge−connected to each other foldably and electrically connected to each other through a connection member (8) provided in a hinge part (5). The hinge part (5) is composed of first fitting portions (11, 12) provided to a first inner case (1) and a second fitting portion (20) provided to a second inner case (2). Cutouts (50) for inserting the connection member (8) are formed among the fitting portions (11, 12 and 20) and covered with a first tongue piece (6) attached to the first fitting portion (10) and a second tongue piece (7) attached to a second cover (4).