1) Chip frequency: 125kHz -13.56kHz 2) Material: ABS, PVC 3) Shape: keychain, fob, token, wrist band, watch, coin Keychain Smart Tag:4) Chip: TK4100, EM4100, T5557, Hitag2, Mifare S50 5) Custom logo or photo is available with printed 6) Color: gray, blue, red 7) Application: parking, car, access control8) Looks like articleEM Tag CardFeatures:1) Card type: read only 2) Memory: 64 bit, 128 bit: ...