Patent ID: 7783324

Claim:
An attached body attachably and detachably attached to a mobile communication terminal main body, comprising: an attached body storage unit which stores an attached body identification number identifying said attached body, content data, and access information showing an access destination of auxiliary information to utilize said content data in said mobile communication terminal; and an attached body communication unit which transmits said attached body identification number, said access information, and said content data to said mobile communication terminal main body in accordance with demands from said mobile communication terminal main body; and a first magnetic unit which is positioned on a surface of said attached body so as to contact a second magnetic unit positioned on a surface of said mobile communication terminal main body, wherein a magnetic field obtained by way of said first magnetic unit contacting said second magnetic unit is detected to thereby determine that said attached body is attached to said mobile communication terminal main body and to thereby start the demands from said mobile communication terminal main body to said attached body storage unit.