Jelquix NFC Smart Ring - size8

Specification: Features: 1. Through NFC radio frequency communication technology and connecting the mobile phone to the mobile phone function, it works and shares data. 2. No charge/depth waterproof, built-in -sensitive NFC chip, no electricity to work, easy to use. 3. Multifunctional NFC smart ring, the main function is to store and exchange personal information, as well as unlock mobile content and personal privacy encryption.4. Lock/unlock the program, select the app you want to lock/unlock, enter the smart doorbell, just touch the phone with the doorbell to start the application, to protect personal privacy. 5. Beautiful appearance, easy to use. Specification: Material: Metal Size: about 4*5*0.5cm/1.57*1.97*0.2inch Product name: Smart ringMulti-function NFC Size: 6/7/8/9/10/11/12/13 inches Packing List: 1 * Smart Ring Instructions for use: 1. First, check whether your smartphone has NFC function.It can usually be found in the settings of the .If no relevant options are found, please contact the manufacturer\'s after-sales support, or search whether the smartphone model has NFC function and confirm its NFC area. 2. If your smartphone has NFC function, turn on the NFC switch, search your app for the software that applies NFC, download and install it.For near field communication, be sure to place the top of the ring chip right near the NFC area when reading any data to avoid reading and writing failures.