Size:8  |  Colour:Black Is your phone's NFC feature ignored?First of all, you need to understand, what is NFC?NFC: Near Field Communication, also known as short-range wireless communication, is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission between electronic devices to exchange data.The role of NFC: Near field communication business combines near field communication technology and mobile communication technology, and realizes various functions such as electronic payment, identity authentication, ticketing, and data exchange.After the activation of the APP connection is required, electronic payment and information sharing functions are realized.Make our life more convenient and faster, without having to bring more cash or bus cards.Mobile phones for Android/ Windows: Smart NFC-enabled mobile phones such as Huawei, Samsung, and Nokia.If your phone doesn't have NFC, then this ring will become an ordinary waterproof finger ring .If you are using it anymore, you can email us if you have any questions, and you will get a reply within 24 hours!Specifications:Model: JAKCOM-R3FCarrier frequency: 13.56MHZCoverage: 1.5cmOperating temperature range: -50 degrees - +80 degrees
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