The film "Climbers" released during the National Day is worth seeing, not because the filming of the film is gathered, but because the film is adapted from the true story of the Chinese Everest Mountaineering Team in the last century. The field survey and measurement of Mount Everest's "China Height" was the key to the competition between China and neighboring Nepal for the ownership of the territory of Mount Everest. In the 1960s and 1970s, when there was a shortage of supplies and nothing to do. In 1960 and 1975, China successively set up a mountaineering team with hundreds of people and surveyed the height of China's Mount Everest - 8844.43 meters. This process is unimaginable and difficult, and hundreds of people paid the price of life before they changed. Proof of the bright red flag flying on Mount Everest. Today, China is one of the fastest growing countries in the world. Compared with the 1960s and 1970s, China has been changing with each passing day. Even in the economy, intelligent electronic equipment and scientific research, it can compete with Europe and the United States. A symbol of quality. The country has also made achievements in the field of three defenses. The CONQUEST three-proof mobile phone is suitable for extremely low temperature environment, anti-drop waterproof and long-term battery life. It has also been praised and affirmed for its export overseas, especially for outdoor practitioners and explorers. For those who need to carry out outdoor activities in extremely cold areas, the environment is usually ice and snow, and mainstream mobile phones such as the iPhone, which automatically shut down when the working temperature is below zero, are obviously not portable. The communication tool is also a necessity in this era. In a harsh environment, it is necessary to have a connection with the outside world, and the requirements for the protection capability of the mobile phone are professional. The three-proof mobile phone is originally used for the harsh environment. From the technology of self-research and three-proof, CONQUEST mobile phone is very strict in the design and material selection of the three-proof structure. The working temperature is between -30°C and 60°C, reaching the professional maximum three-level IP68. The mobile phone can be immersed for a long time. There is no water in the water, the two-meter free fall falls intact, and the ice can be used normally, which is the best choice for users in extremely cold environments. The 8000mAh CONQUEST S12 has an advantage in battery life. The built-in power is optimized. It can be used for 3 days under normal use. It can last for 15 days under SIM card standby condition and can support for nearly 30 days without card. Because for outdoor enthusiasts, long-life communication tools are really important to be able to win opportunities and time when necessary. In fact, climbing the Everest is still a high risk, even in a modern and well-equipped environment. The lowest temperature at the summit is at minus 30 degrees Celsius. Because the climate is extremely cold, no matter how strong the wind will bring great resistance, the ice and snow are raging, and it is also called the third pole of the world. According to the radiosonde data of the fixed-day weather station at the foot of Mount Everest, it is 7500 meters above sea level. The annual average temperature in height is -19.6 °C.Therefore, it is undoubted that the communication equipment that must carry the three defenses with you. If you are interested in outdoor exploration, the three-proof field climber CONQUEST three-proof mobile phone that has been developed in China for 10 years can be included in the bag.