Disclosed is a mobile phone provided with: a main body that can be put in a storage state or a usage state by changing the relative positions or relative orientations of a first unit and a second unit; a wireless communication unit (23) that transmits and receives email; a state detection unit (29) that detects whether the main body is in the storage state; a side key (24) that the user can press; a memory unit (28) that stores email information including email addresses and message bodies; and a control unit (20). The control unit measures how long the side key (24) is depressed, and if the state detection unit (29) has detected the storage state, then in accordance with the length of time for which the side key (24) was depressed, the control unit uses the wireless communication unit (23) to transmit, as an email, email information that is assigned to said length of time and stored in the memory unit (28).