In receiving information on an item by use of electromagnetic waves
propagating from the item in which a radio frequency identification
(RFID) chip is embedded, a portable handset requests the information on
the item that is stored in the RFID chip to the RFID chip-embedded item,
receives from the item the information on the item, and, if additional
information is needed other than the received information, requests the
additional information to a server storing the information on the item by
using the received information.