Feature 1Usage: High tech smart ring adopted Ntag213 chip, can be set to open smart door lock, card recharge, smart phone unlock, phone important file lock, one click file transfer, etc. 2Specific Operation: Smart ring can unlock the screen by touching the NFC signal area of the phone, providing a more convenient and secure way to access your device. 3Multifunction: NFC smart ring can also provide application program lock, quick start of applications, send and read business cards, website information and other functions. 4Lightweight and Stylish: Made of metal material, the NFC ring is lightweight and comfortable to wear on your finger. With its minimalistic design, it adds a touch of style to your daily look. 5Ideal gift: This smart ring is a meaningful gift. It is suitable for any scene or holiday such as birthdays, anniversaries, Thanksgiving, Christmas, Hanukkah or Valentine's Day.Item Type: NFC Smart RingMaterial: Metal .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x NFC Smart RingNote(NFC automation settings are currently only supported by IOS XS and newer models, and the system needs to be upgraded for iOS 13 or later versions).