1) Mifare Card Frequency 13.56MHz 2) Mifare Card Type: MF1 S50 card, MF 1 S70 card, Mifare utralight card 3) Mifare Card Interface: ISO14443A 4) Mifare Card Memory: 1 Kbytes EEPROM, 4Kbytes EEPROM 5) The induction distance can reach 1cm-300cm. 6) A wide variety of transponder shapes, in addition to the classical ISO smart card transponder, are also available including watches, key fobs, disks, etc.