Through the diagonally cut lines into the modeling design, the characteristics of the family series extension, the upper shell injection molding-use less parts, the lower half-metal baffle, the overall characteristics are remarkable, the sense of instrument and professionalism is strong. The top surface uses the golden ratio split to make a feature turn. The tilt angle between the flip cover and the screen conforms to ergonomics, and intelligent flip cover induction is added to facilitate operation. Through investigation and man-machine analysis, the flip hand position is designed on the side, which conforms to the operating habits and increases its mechanical function. The side design integrates the heat dissipation hole and the exhaust hole, and the overall shape is malleable-the features can be expanded.