A mobile device in which a first casing (1) is connected to one end of a connection member (31) rotatably around a first rotating axis (L1) fixed to the first casing (1) and a second casing (2) is connected to the other end of the connection member (31) rotatably around a second rotating axis (L2) fixed to the second casing (2) parallel with the second rotating axis (L2). The first casing (1) and the second casing (2) are disposed at different positions in the directions of the first and second rotating axes (L1, L2) so that the upper surface (1a) of the first casing (1) and the lower surface (2b) of the second casing (2) are positioned approximately on a same plane.
