Smart Ring, No Charge and Depth Waterproof Universal Wear Smart Ring, Magic Wearable Device Universal Ring for Mobile Phone, NFC Smart Rings(size11)

Through the NFC radio frequency communication technology and mobile phone connection to the mobile phone function operation and sharing of data.
No charge / depth waterproof, built-in ultra-sensitive NFC chip, no electricity to work, easy to wear.
Multi-functional NFC smart ring, the main function is to store and exchange personal information, as well as mobile content and personal privacy encryption unlock.
Lock / unlock the program, select the application you want to lock / unlock, write the smart ring, only the ring touch the phone to start the application, to protect personal privacy.
Instructions for use: 1. First, check whether your smartphone has NFC function. It can usually be found in the system settings. If the relevant option is not found, please contact the manufacturer’s after-sales support, or if the smartphone model has NFC function, search and confirm its NFC area on Google. 2. If your smartphone has NFC function, please turn on the NFC switch, search for NFC-applied software in the app store, download and install them. 3. Start NFC APP and follow the instructions. 4. As NFC is a near-field communication technology, when reading any data, please make sure to place the top of the ring chip close to the NFC area to avoid reading and writing failures.