Mobile device having a module for expanding function

摘要

A mobile device comprising a main body (700) having at least one magnetic element mounted thereon; and an expansion module (800) configured to be electrically connected to the main body (700), wherein the expansion module (800) comprises a holder (810) configured to be coupled to the main body (700); a magnet mounted at the holder (800) and disposed to apply a magnetic force to said at least one magnetic element to couple the expansion module (800) with the main body (700); and an input device (820) configured to allow input of a control command to the main body (700) when the main body (700) is coupled to the holder (800) of the expansion module (800).