It is a common thing to keep your hands on your Smartphone, but not on your keys and this means, that you get home the keys cannot easily be found. It would be so much easier if your Smartphone could open the door for you. Well the Calypso Crystal phone case has a built in RFID antenna, so instead of the Smartphone opening the door, the case does! This is ideal for anyone who wants keyless entry to home, office or any other compatible door lock.
These are the details on the Calypso Crystal phone case with NFC;
Replace your keys. Open doors. Access your apartment. Check in at your office building. Open the garage. All with just a short wireless tap of your CalypsoCase. No apps and no charging are needed. The built-in dual-band RFID antenna brings your entire portfolio of identification cards into one CalypsoCase.
One of these cool Calypso phones cases will cost around $480 (£300) they are not cheap but they are cool.
Source: Calypso Crystal