Handset design is one of the common product designs in three-proof products. Compared with ordinary handsets, three-proof handsets are more durable and have higher requirements in terms of quality standards, human-computer interaction and three-proof levels. The three-proof equipment mainly improves the protective performance of the equipment through the comprehensive selection of design and material technology, adapts to various harsh working environments, and has the characteristics of waterproof, dustproof, drop-proof, shockproof, high temperature resistance, corrosion resistance and durability. Professional handset refers to a professional handheld terminal that can communicate data with other devices. Professional handset adopts ergonomic integrated design and is currently the most powerful professional handset in the industry. It adopts high-precision GPS handset technology, high-end system settings, mature monitoring center, and provides comprehensive software application solutions to meet the needs of use with higher, faster and stronger performance, and can realize seamless data docking. According to the design needs of users, the white fox design is innovated and developed in terms of appearance, structure, material, technology, man-machine, user experience, and three-defense design after full market research. The appearance design of the professional handset is unique and novel, small and simple, streamlined design, high-definition touch display screen, professional strong light display mode, suitable for more use environments, very simple and convenient operation, and simple human-computer interaction interface; the body structure is compact, The workmanship is exquisite, and the handheld is high; the shell color is matched with black and orange colors, which is simple and atmospheric, and increases the visual effect and industrial characteristics of the product. The design of professional handset conforms to the national industry standard, the material adopts military surface shell, the three-proof grade can reach IP67, and the surface treatment is exquisite and exquisite. It has the characteristics of waterproof, dustproof, shockproof, waterproof, high temperature resistant, sturdy and durable. Waterproof and dustproof are mainly through sealing treatment, the use of special materials to block water and dust outside the product, to ensure the performance of the product; anti-fall, shockproof is mainly through the design and materials to increase the strength of the product and anti-fall ability. The design of earphone interface, back, knob, battery cover and other details pursues perfection, preciseness and delicacy. The body has good sealing performance, effectively protecting internal components, increasing the use time and ensuring the safety of use.