RFID / NFC Smart Ring - Size 8 - NTAG213 : ID 2802 : $44.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![](https://cdn-shop.adafruit.com/970x728/2802-00.jpg)
Adafruit Industries, Unique & fun DIY electronics and kits RFID / NFC Smart Ring - Size 8 - NTAG213 : ID 2802 - What did Lord Sauron, when forging the One Ring in the fires of Mount Doom forget to include in his all powerful ring? What did he forget to leave out of the ring impervious even to dragon fire, designed to rule over all free peoples of Middle Earth in perpetuity - a ring destined
What did Lord Sauron, when forging the One Ring in the fires of Mount Doom forget to include in his all powerful ring? What did he forget to leave out of the ring impervious even to dragon fire, designed to rule over all free peoples of Middle Earth in perpetuity - a ring destined to be the One Ring to Rule Them All, to tempt its wearer with the promise of infinite power? Thats easy - it could have used an embedded RFID/NFC transponder!
![](https://cdn-learn.adafruit.com/guides/images/000/001/717/medium640/sidebysideChess.jpg)
RFID / NFC Smart Ring - Size 9 - NTAG213 : ID 2803 : $44.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![](https://ae01.alicdn.com/kf/S778cdb0cb64a4c9893531f82dfa6a507z/Full-Ceramic-Waterproof-213-NFC-Smart-Ring-for-IOS-Android-With-Functional-Couple-Jewelry-NFC-Ring.jpg)
Full Ceramic Waterproof 213 NFC Smart Ring for IOS Android With Functional Couple Jewelry NFC Ring Touch Sharing Smart NFC Ring - AliExpress
![](https://cdn-shop.adafruit.com/230x173/5786-00.jpg)
RFID / NFC Smart Ring - Size 8 - NTAG213 : ID 2802 : $44.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![](https://warrenrings.com/wp-content/uploads/2023/03/black-ceramic-nfc-smart-ring-sq.jpg)
NFC Smart Ring - Warren Rings
![](https://cdn-shop.adafruit.com/310x233/3072-07.jpg)
Wireless Products Category on Adafruit Industries
![](https://cdn-shop.adafruit.com/413x309/364-04.jpg)
13.56MHz RFID/NFC Sticker - NTAG213 Tag : ID 4032 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![](https://cdn-shop.adafruit.com/413x309/5349-00.jpg)
13.56MHz RFID/NFC Card - NTAG213 Chip : ID 4034 : $2.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![](https://ae01.alicdn.com/kf/S318eb4d8a6a94022908e8337ee832f9fE.jpg_640x640q90.jpg)
Full Ceramic Waterproof 213 NFC Smart Ring for IOS Android With Functional Couple Jewelry NFC Ring Touch Sharing Smart NFC Ring - AliExpress
![](https://dangerousthings.com/wp-content/uploads/promo_NFC-Ring-NTAG203V1-NORMAL-5.jpg)
NFC TAG203 Ring - V1ntage - RFID & NFC Chip Implants and Biohacking products
![](https://images-na.ssl-images-amazon.com/images/I/51tVXdUshqL._AC_UL600_SR600,600_.jpg)
2802 RFID Transponder Tools RFID/NFC Smart Ring - Size 8 - NTAG213 : Clothing, Shoes & Jewelry
![](https://cdn-shop.adafruit.com/310x233/4481-05.jpg)
Wireless Products Category on Adafruit Industries
![](https://i5.walmartimages.com/asr/837ec63d-0c42-45cb-b4f5-f38d8debf6a3.a431fc4740fed7b610dee7be1fa43fa6.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
R4 Smart Ring New Technology NFC ID M1 , Suitable for Android IOS Windows NFC Smart
![](https://cdn-shop.adafruit.com/1200x900/359-00.jpg)
RFID / NFC Smart Ring - Size 12 - NTAG213 : ID 2806 : $44.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![](https://cdn-shop.adafruit.com/413x309/4429-01.jpg)
RFID / NFC Smart Rings - Multiple Sizes - NTAG213 : ID 3041 : $0.00 : Adafruit Industries, Unique & fun DIY electronics and kits