Welcome to the store! 1. Smart Anti-Interference: The anti-interference algorithm ensures each tag is accurately identified without interfering with others. 2. Practical: Quick response, easy to use, lightweight, and can be attached to the back of your phone or other flat surfaces without sacrificing performance. 3. Parameter: Adopts a CUID chip, 0-5 cm reading distance, 40 mm size, lightweight and portable. The PET material is durable and not easily broken. 4. Compact: Compact design allows for easy embedding into targets such as product labels or electronic devices, making it practical to use. 5. Easy to Use: Simple operation, just bring it close to the sensing area to read with NFC-connected devices, eliminating the need to carry NFC cards. Item Type: NFC Stickers Material: PET Chip Type: CUID Reading Distance: 0-5 cm/0-1.97 in Product Size: Approx. 40 mm/1.57 in 20 x NFC Label Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!