JAKCOM R5 Smart Ring, Size:L 1. Functions: Replace six RFID cards functions, social sharing, support iOS shortcuts, wireless flash disk, virtual call and SOS, support MI smart home 2. JAKCOM R5 has the unique Tai Chi design of double colors on front and back sides, which is a new fashionable accessory. 3. Made of fine ceramics, no fear of scratches, whole body is made of microcrystal zirconium fine ceramics, surface hardness is second only to diamond, durable and scratch free. 4. Silky and Skin Friendly: Owning to the low thermal conductivity of microcrystal zirconium, as well as over ten thousand times of CNC polishing, R5 has jade-like warmth and smoothness. 5. Social Sharing: Use the ring touch to share social contact, almost include all mainstream social platforms. 6. Great New Tool for Dating: Add friends with one touch, simple and easy to use, quickly ice breaking. 7. Wireless USB Flash Disk: Use ring touch to transfer any files, and each ring has exclusive 128GB storage space. 8. Great New Tool for Efficiency: Transfer huge files within seconds without waiting 9. One Touch to Start Up Smart Home Devices: The ring can be set as a trigger for the intelligent scene of MI Home Smart Devices. 10. One Touch to Launch iOS Shortcuts: The ring can be set as the starting switch for iOS phone shortcuts. 11. Location Message: The ring can trigger the phone to send GPS location messages to your multiple contact. 12. Virtual Call: The ring can trigger the cloud server to make a call to you, so that you can find an appropriate excuse for departure. 13. Continuous Iteration: More new functions are under continuous updates, sincerely look forward to your exploration. 14. Lightweight and Waterproof: JAKCOM R5 has only 9 grams weight and dustproof & waterproof level of IP56. 15. Dual Energy Stone, Dual Health: The ring is inlaid with two energy stones to improve human EMFs. 16. Small Size, Large Power: Compare favorably with the regulating ability of the energy