An RFID tag includes an RFID device, an output device and a controller. The RFID device includes a storage from and into which information is readable and writable from a reading/writing apparatus through wireless communication. The output device outputs information. The controller reads information for output from the storage and controls the output device. The storage includes a first region into which the information for output is written and a second region separate from the first region. The controller updates data of the second region in response to updating output of the output device.