Ceramic Material: The R4 ring is made of microcrystalline zirconium ceramics, with excellent refractive index and dispersion performance, giving off a unique round luster overall. Conform to strict quality control standards, dependable to use. Share Cloud Information: R4 can share various cloud information with one key, such as encrypted text, electronic business cards, website pages, and network disk files. This feature makes it easy to connect and communicate with friends and colleagues. NFC Modules: Through the two sets of NFC modules, it is possible to run its built in numerous characteristic cloud services separately. No need to install an app for direct use, and suitable for both for Android and for IOS platforms. Frequency Band: From 125KHz to 13.56MHz frequency band, the R4 ring can simulate encryption cards or cards with multiple format standards. Applicable Models: All Phones With NFC Function. Upgrade Circuit Structure: The newly designed circuit structure significantly reduces the electric field interference between various modules, and increases the transmission distance by three times compared to the previous generation product, making it easily compatible with various card reading devices.
