MIFARE Ultralight has a 512-bit EEPROM read/write memory and is compatible with existing MIFARE infrastructures. Operating in accordance with ISO 14443A, MIFARE?ultralight functions at a distance of up to 10 cm with true anti-collision properties and without the need for a battery. It enables the development of a complete electronic, contactless payment system for use in public transport systems and other applications. Duration up to 10 years.