Disclosed is a mobile terminal comprising: a terminal body having a touch screen; an audio jack mounted to one side of the terminal body, and connected to an audio output device; and an antenna device detachably mounted to the audio jack, wherein the antenna device includes: an antenna body implemented in the form of a rod having a predetermined length; a connector formed atone end of the antenna body so as to be inserted into the audio jack, and including one or more feeding terminals; and a touch tip provided at an end of the connector, and configured to manipulate the touch screen.