On the basis of inheriting the previous generation of modeling, the curvature is adjusted, the parts are optimized, and the decorative parts are added locally, so that the product has dynamic fashion elements through the fading surface. The red lens sticker puts the finishing touch on the product and enriches the details. The surface increases the product layering through material contrast. The internal structure is designed in detail, increasing structural restrictions such as rotation stop, orientation and tolerance, and protecting the internal devices of the product more.