Metal-style earphones, in addition to controlling the overall style, the design of the bracket is one of the key points. There is a strong logical relationship between the bracket and the ear shell. The bracket needs to be unique and achievable, but it must be coordinated with the ear shell. This is one of the difficulties. The support of this scheme adopts aluminum alloy die-casting process, the ear shell surface cover adopts turning process with grain, the head beam is completely foreskin, the texture is very good, and the realizability is strong!