Description/Features: The RFID Card is a 13.56MHz RFID / NFC card with the logo. The main part of the card is composed of the chip, coil antenna and card base, and does not carry power itself; The antenna works by obtaining the radio wave emitted by the reader, and the communication between the reader is realized by radiofrequency technology. Due to its good stability and security, this type of card is widely used in traffic, communication, security, and other inductive card management systems that require radio frequency identification. The Fudan F08 chip built into the proximity card provides long data retention, read and write life while maintaining good sensing performance. Specifications: Category: Contactless IC Card Material: PVC Chip storage capacity: 1K x 8Bits Sensing distance: less than 10mm (related to the reader) Data retention period: 10 years Read and write life: 100,000 times Working temperature: -20 ~ 50 C Working frequency: 13.56MHz The encryption algorithm conforms to the M1 standard. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: As Shown Package Contents: 5 x RFID card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.