Keychain, fob, token, Proximity cards
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1) Chip frequency: 125KHz---13. 56KHz
2) Material: ABS, PVC
3) Shape: Keychain, fob, token etc.
4) Chip: TK4100, EM4100, T5557, Mifare S50 etc.
5) custom logo or photo is available with printed.
6) Color choose: Gray, blue, red, etc
7) Application: Parking, car, access control, gift etc
Proximity cards, or simply "prox cards, " communicate through an antenna similar to contactless smart cards except that they are read-only devices that generally have a greater range of operation.
Prox cards continue to grow in popularity because of the convenience they offer in security, identification, and access control applications, especially door access where fast, hands-free operation is preferred.