ASHATA Universal Smart NFC Rings for Mobile Phone, Ring Multifunctional Magic Wearable Device, Waterproof Device Phone(Size 4)

【Smart NFC Rings】Through the NFC radio frequency communication technology and mobile phone connection to the mobile phone function operation and sharing of data. 【Function 】Multi-functional NFC smart ring, the main function is to store and exchange personal information, as well as mobile content and personal 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. 【Advantage】No charge / depth waterproof, built-in ultra-sensitive NFC chip, no electricity to work, easy to wear. 【Tip】Beautiful appearance, easy to use.Any questions,Please feel free contact us,we will provide you with high quality after-sales service.