Unlock more power of iPhones with CalypsoKey. It is a near field communication (NFC) system enabled CalypsoCase. It allows the users to open apartment, office doors and garages with just a short wireless tap without using any App. Two built-in antennas using the RFID access points deliver two unique transmitter IDs. IDs are then checked by the access point’s databases. If this ID is permitted to get access, it unlocks. You need to pair your locking system with your CalypsoKey and you are ready to enter only by tapping your CalypsoCase. No more need to carry heavy keys in your pockets.