key Fobs/Keychain Smart Tag:
1) Chip frequency: 125kHz -13.56kHz
2) Material: ABS, PVC
3) Shape: keychain, fob, token, wris

key Fobs/Keychain Smart Tag:

4) Chip:  EM4100,

5) Custom logo or photo is available with printed
6) Color: yellow, blue ,Six colors available
7) Application: parking, car, access control
8) Looks like article


EM Tag Card
Features:
1) Card type: read only
2) Memory: 64 bit, 128 bit: Protocol ask, Manchester
3) Mode: EM4100, EM4102, TK4100 (much cheaper, compatible withEM)
4) Frequency: 125kHz
5) Transmission: Passive
6) Material: PVC, PET, ABS
7) Size: 86 x 54 x 0.8mm (T)
8) Applications: logistics automation, anti-counterfeiting, accesscontrol, industrial
transponder

FRID key card