... .Application:Defrayment,Intelligent transporation,access control etc Mifare S50 Intelligent RFID CardFeatures Standard: ISO14443 Type AFrequency: 13.56mhzMemory: 1k/4kReading distance ... control, Physical Access Control,Checking the balance of electronic purses, Software locking,Digital signature, Loyalty Program,Stored value, Identification, Ticketing,Parking ...