Walking past the stands at a tech conference, you will undoubtedly receive more than your fair share of freebies. Over time these handouts have become more and more high-tech; first, it was pens and notebooks. Now, if you don’t receive a branded cardboard VR viewer at a tech conference, it’s probably because they ran out before you got there.

Much like technology itself, these giveaways continue to evolve. In the not-too-distant future, thanks to the kind of technology embedded in these freebies, attendees could be walking around the halls literally wearing their identities on their sleeves.

RFID t-shirts and wristbands will have conference attendees tagged

In thousands of warehouses and retail outlets around the word, RFID (Radio Frequency Identification) tags help keep track of stock by emitting signals with embedded information about the items that bear them.…