This is a Focalink "Relief" Alto C (AC) ocarina. Focalink is a world-class ocarina maker with the highest level of technology, producing the Osawa Ocarina, the original brand of Satoshi Osawa. "Relief" refers to "embossed," and this model features embossed decorations on the surface of the body, characterized by its three-dimensional design. It has the bright sound typical of Focalink, and it resonates smoothly from low to high notes. The unevenness of the decorative parts makes it easy to grip when held. Sound has been confirmed. Thank you.