Size:66mm This smart ring is compatible with Android with NFC function. Fits for Samsung, Sony and so on Main Features: 1. Healthy Element: many kinds of trace elements in crystal ceramic can improve the human metabolism and effectively promote blood circulation 2. Private Note: save all kinds of private information to this smart ring, such as schedule, account, memo and so on. And set the Ring Touch action to be the only way of view or edit 3. Mobile Phone Lock: set screen lock and APP lock randomly and let ring become the only key to your privacy 4. Quick Start: quick start multi-function scene mode, release the hands with high efficiency 5. Share Information: touch to share "card", "website link", and "message and pictures", and pass on information effortlessly, efficiently and specially 6. No Need Battery Charging: It can make you forget the recharging and wiring harness, and use it at any time 7. Waterproof, Dust-proof and Fall-proof: high waterproof level, dustproof and excellent resistance to fall and rolling resistance can be competent to the application requirements of any occasion Note: It does only work with Android devices using the NFC app. Technical Parameters: Technology: near field communication Input/Output: NFC Waterproof Grade: IP68 Carrier Frequency: 13.5MHZ Material: Liquid Tungsten, Epoxy Crystal Ceramic, Pure Titanium Color: black Inner Circumference: 70mm Package: 1 x NFC Smart Ring 1 x User Manual
