High Security Level DES-Fire EV3 2K Keyfob is made of ABS material with rfid chip and antenna . It will be durable and injection ABS case then sealing rfid chip under ultrasonic machine without any space sideview so that you can use them in out-door harsh environment and waterproof .It will fully compliance with ISO14443A and 13.56Mhz . DES-Fire EV1 or EV2 or newly EV3 version chip can have optional memory and 2K , 4K ,8K for using usual and they are all level of security using a 3DES or AES hardware cryptographic engine forenciphering transmission data ,it will greatly protect you data or money safe and hard to clone with another keyfob . they are widely using for cashless payment ,luxury items identification ,etc.

13.56MHz ISO15693 I CODE SLIX NFC Keyfob is made of ABS material with rfid chip and antenna . It will be durable and injection ABS case then sealing rfid chip under ultrasonic machine without any space sideview so that you can use them in out-door harsh environment and waterproof .It will fully compliance with ISO15693 and 13.56Mhz I CODE SLIX chipset , an intelligent anticollision function enables several keyfobs to operate in the field simultaneourly.The anticollision algorithm selects each keyfob individually and ensures that the execution of a transaction with a selected keyfob is performed correctly without data corruption resulting from other keyfobs in the field .This kind of rfid chip keyfob widely uses for libraries .pharmaceutical supply chains and door control access, etc .It also is fully compatible with NFC forum type 5 under nowadays more and more popular NFC applications .