Unlock doors by wearing jewellery
16 August 2013 Last updated at 09:00 BST
NFC - near-field communication - was meant to be the next big thing. But, allowing payments or communication without touch being necessary has proved a difficult market to crack.
Spencer Kelly reports on how one company is hoping placing NFC technology in jewellery will make people more likely to invest in the technology itself, testing a ring that can unlock everything from a phone to a front door.
The programme was first broadcast on Saturday 10 August 2013.