A wireless portable straight hair comb design for outgoing scenes. Aiming at the traditional straight hair comb wire binding, bulky pain points, do small handheld integrated design. The whole machine adopts soft ellipsoidal curved surface, no redundant decoration, and comfortable grip. Single-button dot-shaped indicator light realizes minimal interaction, and comb teeth take into account combing and heating modeling. Multi-color matching covers multiple aesthetics, the body is light and thin and can be stored in a bag, extending the hairdressing style from the dressing table to more mobile scenes such as commuting, travel, office, etc., balancing the practicality of tools and modern aesthetics.