Dual Frequency Smart Card is a type of two different frequency chip in one same 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. We are specializing in all kinds of smart cards’ factory with cheap price and good quality, fast delivery time. Pls feel free to contact us if you want to know more information about us and our products.