Smart Ring, No and Depth 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 and sharing of data. No / 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 information, as well as mobile content and 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 . 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 the manufacturer's after-sales support, or if the smartphone model has NFC function, search and confirm its NFC area on 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