... 3) Shape: keychain, fob, token, wris key Fobs/Keychain Smart Tag:4) Chip: TK4100, EM4100, T5557, Hitag2, Mifare S50 5) ... , red 7) Application: parking, car, access control8) Looks like articleEM Tag CardFeatures:1) Card type: read only 2) Memory: 64 bit ... ask, Manchester 3) Mode: EM4100, EM4102, TK4100 (much cheaper, compatible with EM) 4) Frequency: 125kHz 5) Transmission: Passive 6) Material: PVC ...