Features: This Crystal Card is a highly personalized new RFID smart card with a clear and transparent appearance, strong three-dimensional effect, and dustproof, waterproof, and earthquake-resistant properties. Crystal drop gum appearance is fashionable. Waterproof and moisture-proof, wear-resistant. Feels comfortable and easy to use. Specifications: Product Name: NFC Tag Color: Green, Blue, Red, Yellow (optional) Size: 42x26mm (approx.) Chip: NTAG213 Storage Capacity: 144 bytes Working Frequency: 13.56 MHz Data Storage: 5 years Read/Write Distance: 1 to 10cm Support Agreement: ISO14443 Technical Parameters: Material: PVC, Epoxy resin, AB glue Color: Customizable Printing: Offset screen printing, electronic printing Process Mode: Epoxy packaging Code Type: Laser Code Application Range: Patrol system, attendance system, access control system, one-card system, RFID recognition field. Package Includes: 1Pc x NFC Sticker Other accessories demo in the picture are not included.