I saw the sonic ring you mentioned in official website, Ma Liangxing. Its full name is "sonic ring". In addition to recording your voice and customizing it on the ring, you can also restore your voice at any time. The ring can also be divided into two parts, which is especially suitable for couples or men and women in long-distance relationships. There are many materials to choose from. Please visit the official website of Ma Liangxing for details.