SANPOPO 10PCS NFC Sticker Anti Metal Tags,Black Tags NTAG215 Tag Stickers Work On Tag,Round 25mm(1 inch) Compatible All Enabled Cell Phones & Devices

Pack of 10 blank black NFC anti-metal on metal tag/NTAG215 NFC stickers, 25 mm (1 inch) round, paper material, writable, 3M self-adhesive back. (for metallic/conductive surfaces) Designed for use on metal surfaces including aluminum and electronic surfaces. But do not use on liquid bottle surface. White PET sticker is waterproof NTAG 215Chip works with 13.56MHz, 504 bytes or rewritable and optionally password-protected or permanently lockable memory (100%+ the amount of memory as NFC NTAG215) can be used to share contacts, open websites, launch applications and change mobile settings, etc. 504 bytes of memory: For most people, these cards offer more than enough storage space for typical applications (WiFi/Bluetooth connection shortcuts, business/ID card data, etc.) at just under 504 bytes per card. Note: some of the iPhone models can not support reading the nfc tags, so it does not recognize the nfc tags, it is not a tags problem, please understand it clearly before you buy