RESEARCH AND DEVELOPMENT
Deepresearch anddevelopmentThe earphone cavity design is ergonomic and made ofmedical-grade resin, which is comfortable to wear and noteasy to slip.The design is based on the acoustic structure of the airpressure balanced low-frequency front cavity, and the cavitydesign is ergonomic with the help of computer simulation. ltis made of medical-grade resin, comfortable to wear and noeasy to slip.