Meiyiu NFC Multifunctional Waterproof Intelligent Ring Smart Digital Ring Gift Black 10
The main function are store and exchange personal information, as well as mobile content and personal privacy encryption unlock.
Water resistant and no charging required, programmable read-only lock function, 7-byte serial number clone protection function.
Make sure to place the ring chip close to the NFC area when reading any data to avoid the failure in reading and writing.
Support all Android and Windows NFC Mobiles, such as Apple, Samsung, Huawei, millet and other DNF-enabled mobile phone.