Can be applied on RF-interfering surfaces such as cellphone batteries; Dimensions: 21mm x 21mm; Adhesive backing; NFC Chip Type: NTAG203; Full compliance to the NFC Forum Tag 2 Type technical specification; 168 bytes of total memory, divided in 42 pages (4 bytes each); 144 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