China's J-20 has more than 2 million flying helmets. What's special about it?

Speaking of helmets, we all know that one of its main functions is to protect people's heads. But a helmet worth more than 2 million may be the first time you have heard of it! Then why is his value so expensive? So special? What's special about it?

There are microphones, various sensors, oxygen supply, noise reducer, head-mounted computer and so on in the pilot's helmet. It is mainly used to communicate with external personnel and maintain sufficient oxygen supply in the closed space. Flying is a dangerous action, and only by providing enough sense of security for internal personnel can we ensure stable flying again and again. In addition, the price of manufacturing a J-20 is quite expensive. Will the helmet be out of tune if it is cheap? This is just my personal opinion. The reason why it is so expensive is the complexity of production materials and technology. In the design of the helmet, the designer has also fully considered a favorable control, and the work of various sensors directly makes all components work normally. It's expensive for a reason.

Compared with the old helmet, all the news will be projected on the helmet, so the pilot does not have to look down at the screen during the flight. At the same time, it also ensures the safety of flight. Because I study flying machines, I still know something about helmets, but only a little fur.

Special helmets are used in special industries, and the profession of pilots is very dangerous. We can also often see flying accidents. In the event of an accident, a special helmet can ensure a head injury, which is also the original intention of the helmet. Now society is developing, technology is developing, and helmets add a lot of sense of technology.

These are my views on the special significance of expensive helmets, but the role of helmets goes far beyond this. Do you have any special opinions?