Meet the NFC Ring: a cool ring you can use to unlock doors and mobile phones. You can also use it to transfer information. As long as you have NFC compatible products, you will be able to use a ring like this to control them (e.g. NFC enabled door lock). This exciting project is currently being funded on Kickstarter.
More gadgets like this: here
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.