Audio air ultra-thin speakers present minimalist industrial design aesthetics with card-grade size and 6mm extreme thinness. Integration of non-redundant body, neat lines, taking into account the structural strength and grip feel. The precise acoustic layout achieves sound quality balance in a very small volume, the interface and keys are invisibly processed, the whole is simple and advanced, and it has both portability and texture. It is a high integration of thinness and acoustic design.