Health Protection Waterproof Unlock Smart Ring Wear, New Technology Magic Finger NFC Ring Access Control Near Field

Health Protection Waterproof Unlock Smart Ring Wear, New Technology Magic Finger NFC Ring Access Control Near Field

Features:
Quickly lock and unlock your smartphone or tablet and hide apps when you leave your smartphone alone.
Share and transfer information. Control the application. Water resistant, no need to charge.
To quickly launch the mobile app, you need to quickly launch the program launch command in the smart ring. When the smart phone touches the phone, it will automatically find and start the program.
Avoid chemicals, avoid wearing when bathing and sweating a lot, avoid being hit, avoid wearing when sleeping, and clean with a soft cloth.

Specifications:
Material: Stainless steel
Color: black, transparent
Diameter: 17.3mm, 18.2mm, 18.9mm, 19.8mm, 20.7mm, 21.3mm, 22.3mm
Function: mobile application lock, smart access control
Quantity: 1pcs.

Package Includes:
1*Smart Ring
(other accessories demo in the picture is not included.)

Note:
Please allow 1-2mm errors due to manual measurement.