NFC Tag Ntag216 Anti Metal Adhesive Back 30mm Dia -10PCS (Black)

["1.Ntag216 chip 2.waterproof. 3.ABS Material 4.compatible with all nfc phone. 5.can put on metal,with anti-metal material. 6.Diameter: 30mm Package included: 5pcs NTAG216 NFC Anti-metal sticker","NFC Chip Specifications: NFC Chip Type: NTAG216 Full compliance to the NFC Forum Tag 2 Type technical specification 888 bytes of total memory, divided in 42 pages (4 bytes each) 872 bytes of user R/W memory area, divided in 36 pages (4 bytes each) Rewrite Endurance: 10,000 cycles 16-bit counter Lockable: yes (can be made read only) Operating Frequency: 13.56 MHz Operating Range < 2cm (depends on device) Compatible with NFC enabled smartphones Works with the new Nexus 4 phone and Nexus 10 Tablet","Security & Anti-collision: Anti-collision function according to ISO/IEC 14443 allows to operate more than one sticker in the field simultaneously Anti-cloning support by unique 7-byte serial number for each device 32-bit user definable One-Time Programmable (OTP) area Field programmable read-only locking function per page for first 512 bits Read-only locking per block for rest of memory"]