If I ask you what is in the picture above you will simply respond that it is the emblem of a Japanese school uniform but it is not just any ordinary school emblem rather it is an RFID embedded school emblem spotted at the RFID Expo in Tokyo. Tags in the range of high frequency to ultra high frequency can work pretty well on these emblems even in humid environments.

These RFID emblems could be used by teachers as a means of keeping a watch on school children but I was just wondering whether children and their parents would give permission to sew these tags into their uniform or not.