Schlage smart credentials put you in control by delivering smarter solutions. These credentials protect your most sensitive data by utilizing extra layers of security protection, and can be used for many other applications including transit, cashless vending, and cafeteria point of sale. Schlage smart credentials operate on a 13.56 MHz frequency, and utilize high security encrypted data, which is mutually authenticated in communication between the card and reader, providing optimum security. This new ‘multi-technology’ fob also works with 125 kHz proximity systems. You can now use one fob in one large network full of mixed technology devices. Features: New, thinner fob design Smart technology Utilizes dual technologies including 125 kHz Prox AND MIFARE Classic ISO 14443 Specs: Brand Schlage Manufacturer Allegion Credential Type Fob, MIFARE Credential Format 125 kHz Proximity, 13.56 MHz Smart Technology Dimensions 2 (H) x 1.24 (W) x .38 (L) in.