Combine the benefits of 125kHz HID Proximity technology and DESFire 13.56MHz technology in one key fob. The fob can be used for multiple applications such as access control, cashless vending, public transportation, event ticketing, customer loyalty and photo ID cards.  Embedded with DESFire EV2 4K and HID 125kHz inlays.  Card can be used in both DESFire and HID Proximity readers and/or applications in which the technology is supported.