Dual Frequency RFID HF with LF Cards are 2 kinds of rfid frequency chips encapsulation together , 13.56MHz with 125Khz . It can more widely applications in low frequency such as access control and both multipurpose such as bus card ,recharge card ,identification card etc . Meeting different working environment and multi-applications card , you only show one card then can come true different working performance .Full color printing and another personalization are available .