This is a product from Mr. Ai Mademoiselle, released in 2018. It was handmade by Mr. Ai and her staff. It has been used a few times and stored. There are some areas where the paint is chipped (see photo 3). Description: By utilizing the pressure within the clam shell and further ringing the bell, the sound pressure increases. This functions as a sophisticated way to gather energy. Moreover, the sound is rich in subtle sounds of 20,000 hertz or more. Sounds below that frequency reach your ears, but sounds that don't reach your ears hit your skin. The sounds that reach your ears are sound, and the sounds that reach your skin are sound, and both gather energy. Many people feel warmth just by placing the clam shell on their body. Furthermore, by ringing the sound and shaking or stroking it... it will undoubtedly be a fun energy good.