The homogeneity of home theater speakers is more serious, and it is limited by factors such as process materials. There has been no major innovation for many years. This design seeks innovation based on conventional process and cost considerations, and will eventually be passed on. The whole net cover is divided into three, and the modular design is adopted, and different colors can be replaced for the separated net cover to increase customized color and playability, stand out among similar products. (The design has been mass-produced and has patents. Counterfeit must be investigated!!!)