A mobile phone includes a communication module for establishing a master-slave relationship with another electronic device to perform communication. The mobile phone determines a carrying state and performs control related to the master-slave relationship of the communication module based on a determination result of the carrying state. By this configuration, the mobile phone can improve user's convenience with respect to the use modes of electronic devices between which the master-slave relationship is established. For example, when it is determined that the carrying state is a carried state, the mobile phone may make the communication module subordinate to the other electronic device.