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. According to the needs of customers, combined with market research data analysis, designers not only need to innovate in appearance, structure, material, and man-machine during the design process, but also need to consider the use environment, key operation, and overall function coordination. The appearance design is novel and unique, simple and beautiful. The design is inspired by stars and bright moon. A large number of stars and bright moon elements are used in the design. It not only has the heaviness of the three-proof equipment, but also has the stability of the stars, giving people a solid and durable feeling. The screen of the handset is like the screen of a smart phone, full of fashion and technology, although heavy but not heavy. Reasonable material selection, exquisite and beautiful workmanship, high hand grip; The overall shape, LOGO design is as dazzling as stars. The air outlet and lens are also the design of stars, just like an asteroid surrounding two big stars. The structural design is stable and efficient, and the performance is excellent. It adopts the Android 5.1 system and has the functions of industrial data collection, supporting bar code, RFID, fingerprint, camera, remote wireless intercom, etc. Large battery capacity, long battery life and strong explosion-proof function; High protection level can reach IP67, fine workmanship, strong environmental adaptability, sturdy and durable; simple and convenient operation, equipped with a five-inch high-definition display screen, the reading data is very clear. This three-defense handset design won the Taiwan Golden Point Award in 2018. It is not only an affirmation and recognition of the design, but also a testimony to the strength of the design organization.