... 1K S50 3.Six colors available key Fobs/Keychain Smart Tag: 1) Chip frequency: 125kHz -13.56kHz 2) Material: ABS, PVC ... 3) Shape: keychain, fob, token, wriskey Fobs/Keychain Smart Tag:4) Chip: EM4100,5) Custom logo or photo is available ... colors available7) Application: parking, car, access control8) Looks like articleEM Tag CardFeatures:1) Card type: read only 2) Memory: 64 bit ...