The ethereal drum features ethereal, distant, deep, and mellow sound quality. On the basis of the steel tongue drum, Chinese Luru musical instruments incorporate Chinese elements into tongue shape and painting, gathering the essence of Chinese philosophy, religion, culture, art, music, and traditional Chinese culture for thousands of years, integrating modern craftsmanship, sound theory, and innovative design.

The initial drum production process in China was relatively rough, and the pitch was also limited. Nowadays, more and more people are fond of playing worry free drums, which are becoming more and more beautiful, exquisite, and have richer tones. With the development of production technology for worry free drums, professional 14 and 15 tone products have been developed. As a result, worry free drums have a wider range of sound and can play more professional scores and perform professionally.