Rings Type:NFC Ring Jewelry Main Material:Stainless Steel Main Stone:Crystal, Rhinestone Setting Type:Pave setting Occasion:E-payment,Wedding,Party,Gift Gender:Women's,Unisex,Men's Product name:RFID Ntag213 Smart Ring Frequency:13.56MHz Chip Type:Ntag213 Protocol:ISO 14443A Read Range:0~10cm Housing Material:PET,PVC Size:Diameter 22mm Surface Finishing:Glossy Encoding:Available Application:Door access control, Identity Show More