... keychain, fob, token, wris key Fobs/Keychain Smart Tag:4) Chip: TK4100, EM4100, T5557, Hitag2, ... parking, car, access control8) Looks like articleEM Tag CardFeatures:1) Card type: read only 2) ... with EM) 4) Frequency: 125kHz 5) Transmission: Passive 6) Material: PVC, PET, ABS 7) Size: ... 8) Applications: logistics automation, anti-counterfeiting, access control, industrialtransponder key Fobs/Keychain ...