[Multi Functional: This smart ring can be used to unlock smart door locks card recharge unlocking smartphones locking important files one click file transfer compatible with any device supporting NFC. "Intuitive Operation: Touch your smartphones NFC area with the smart ring to unlock screen lock applications quickly launch apps send and receive business cards website information and more." "Ultra Light Design: The smart ring features an incredibly lightweight body for a comfortable wearing experience that you may even forget its there allowing you to wear daily without burden." "Ideal Gift: This smart ring makes a meaningful present for any occasion such as birthdays anniversaries Thanksgiving Christmas Hanukkah or Valentines Day." Advanced and Professional: The NFC ring is a high tech smart ring equipped with for Ntag213 chip. It applies the latest technology to make your life more convenient and secure.]