Sell Waterproof smart NFC ring /Multifunctional finger wear/Connect smart phone/Smart wearable technology best price

Features: -Touch unlock, hand wear ring touch unlocks, screen lock, application lock set (some phones need to ROOT, can use the function). -No charge/depth waterproof, built-in ultra-sensitive DNF chip, no electricity to work, easy to wear. -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 secrecy. -Touch the sharing / personal memorandum, you can store private content in the ring, you can also share the phone business card, wifi password, graphic information, etc., can also be used as a private memo to unlock the only way to unlock. -Quickly start the phone application, in advance will need to quickly start the program startup command written in the smart ring, when the smart ring touches the phone will automatically find and start the program. Description: Quickly start the phone application, in advance will need to quickly start the program startup command written in the smart ring, when the smart ring touches the phone will automatically find and start the program. Specifications: Material: titanium steel Inlay material: NFC white card NTAG213 Style: Smart Size 8 9 10 11 Perimeter 56.5 59.6 62.8 65.9 Inner diameter(mm) 18 19 20 21 Package Included: 1* Smart ring Notes: -Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. -Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.