Disclosed herein are a mobile apparatus which is configured for enabling multimedia content which is being output on the mobile apparatus to be output via a predetermined multimedia apparatus when the mobile apparatus is connected to a home network, a display apparatus, and a multimedia output method using the same. The multimedia content may include at least one of a picture, music, video, and text. The mobile apparatus includes: an output unit configured to output the multimedia content; and a controller configured to output, if the mobile apparatus enters a predetermined area, the multimedia content being output on the output unit via the predetermined external apparatus.