The Dual Frequency Smart Card is a type of two different frequency chip in 1 card,such as 13.56 MHz +125 KHz cards or UHF 860-960 MHz + 13.56 MHz cards，and 125KHz + UHF 860-960 MHz cards. It is a very functional card in smart cards. The hybrid dual-frequency RFID card main feature is two frequency bands.
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