Full Color Printed 125KHz LF RFID Hotel Key Cards are 125Khz frequency rfid chip with plastic material. It will be complian with ISO11784/11785 protocol and widely use for door control access, hotel key cards ,identification,etc . 125Khz rfid cards can have read only and R&W optional according to customers' applications .Full color printing , serial number, magnetic strip ,barcode ,embossing and die-cut shape or size is available .