• Please read the size chart we provide care before purchasing
• NFC smart chip ring is a fashionable wearable electronic product that performs mobile phone functions and shares data through the connection of NFC radio frequency communication technology with mobile phone
• It does not require any power supply and has the high-grade waterproof capability
• The ring has a built-in NFC chip. You need to bring your own NFC to use it

Specifications:

• Material: Stainless steel
• Width: 8mm