The present invention is a mobile phone having a non-telephone function (e.g. a radio function) that is different from a telephone function, and comprising: a non-telephone function unit (a radio functioning unit) operable to execute the non-telephone function; an auto-power-off control unit operable to cause a timer to operate during execution of the non-telephone function, and automatically stop the execution of the non-telephone function when the timer indicates an elapse of a predetermined time period; a telephone function unit operable to execute the telephone function; and a reset unit operable to reset the timer to an initial state each time a predetermined operation relating to the telephone function is executed. The present invention successfully reduces occurrences of unwanted auto power off during the time when the non-telephone function is in execution—for example, the auto power off of the radio function during the time when the user is listening to the radio.