Because of readable and writable features, NFC tags allow people to change and read the data when you want, the chip inside can quickly read the data, please notice that a NFC-enabled device is needed.
You can use NFC 215 blank card to set a alarm clock, turn on and off WiFi, make a call, launch an application, join a network, show a message, share a contact, show address or location, update social media, open a web page, etc..
Product chip: nfc215
Product frequency: 13.56MHz
Ring color: black on outer surface
Ring width: 8mm
Ring size: Standard American Ring Sizes 6 to 13 are available
Applicable crowd: male and female
Packaging: a beautiful ring and ring box
Material: zirconia ceramic+epoxy resin
Reading distance: 1 cm to 5 cm (depend on the reader and using environment)
Function: read and write
Data storage time: more than 10 years
1NFC smart ring
Some phones are unable to read the nfc tags, please understand it clearly before making purchase.