Smartphones are now deeply involved in our trivial routine. Over the long term, the inconvenience has also become part of the smartphone. It is a smartphone accessory "Firpeng smart ring" that can solve the inconvenience. "Firfeng Smart Ring", which was developed with a different DNA from the original ring, The perfect combination of metal ruggedness and the combination of two powerful hinged rings and rings will make your smartphone smarter by giving you a variety of angles, rotating and folding as you think. "Fireng Smart Ring" is a product that has been designed in Korea and has one domestic patent, two design patents, and a PCT application for overseas patent application. It is different from the existing similar products. As a prototype, we have reached 700% success rate in Japan's cloud funding site Makuake and are negotiating export to Japan.