With the continuous progress and development of science and technology, both medical devices, household goods and electronic products are keeping pace with the times, especially the frequency of upgrading electronic products is particularly high. But for the elderly, the ability to get in touch with new things may be slightly slower. Designers carry out design innovations according to the needs of the elderly, fully understand the usage habits and psychological characteristics of the users, and carry out design innovations from the aspects of appearance design, structural design, color matching, process processing, man-machine operation, functional use, etc., and design A two-color coated and three-proof elderly machine suitable for the elderly. The elderly machine is no longer limited to only key-button mobile phones, but also has full-screen mobile phones like smart phones. Compared with ordinary smart phones, the keys and displayed fonts will be larger, with relatively fewer functions, large ringtones and strong vibration. One-button dialing or voice broadcasting functions can be set to meet the daily use of the elderly. The appearance design adopts one-piece design, small in size and convenient to carry. Pay attention to details and exquisite workmanship. The color adopts classic black as the main color system, and some keys adopt red and green design, which is very eye-catching. The key surface is also painted with pictures and texts, which has a good visual experience. It is made of environmentally friendly and healthy materials and designed in strict accordance with the national protection standards. The protection level is high and can reach the industrial, it has the characteristics of waterproof, shockproof and anti-fall. The combination of key mode and touch screen mode can be controlled by handwriting or key. The anti-skid frame design is adopted around the mobile phone, which can not only prevent the mobile phone from accidentally falling off, but also improve the comfort of hand-held. In terms of function, advanced communication technology is adopted, and the signal is stable; high-quality intelligent power-saving system is adopted, which has long standby time, long battery life and reduces the number of charges; it has the function of charging treasure and can charge mobile phones or other mobile devices; it supports daily software such as photography, games, alarm clocks, WeChat, etc., and is simple and convenient to operate.