Welcome to the store! 20 NFC Stickers: This package includes 20 NFC decals, each 40mm/1.57 inches in diameter, operating at a 13.56MHz frequency with a 0-5cm/0-2 inch read distance. Versatile Use: These NFC stickers offer multiple applications, perfect for smartphones, tablets, access control devices, and more, making your life more convenient. Anti-Interference: The anti-jamming algorithm individually selects each tag, ensuring the chosen tag performs transactions correctly. This allows multiple tags to operate simultaneously in the same location. Easy to Use: Lightweight and compact, these NFC decals can be easily embedded into items like product labels or electronic devices. Small Size: Mobile NFC stickers are tiny and can be attached to the back of your phone or other devices without affecting performance. Specifications: Item Type: NFC Stickers Material: PET Operating Frequency: 13.56MHz Read Distance: Approx. 0-5 cm/0-2 inches Working Mode: Read and Write Diameter: Approx. 40 mm/1.57 inches Package Includes: 20 x NFC Stickers Your 100% satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will provide you with the best solution!