InvisQuiet is the revolution of acoustic windows. Its uniqueness stems from the absence of external features that took up excessive space in traditional designs. Instead, it uses a windowpane as a functional acoustic barrier. When opened, the windowpane extends outward to a horizontal position, acting as a cantilevered barrier blocking external noises. Simultaneously, the large openable area facilitates indoor air circulation. A typical windowpane is 500mm long, providing about -5.5dB(A) attenuation, and can be extended to 700mm for greater noise reduction.