It is said that the Walkman that Mu Tianqi listened to every day was actually the latest Korean "Blue Tone" (AK240BlueNote) limited edition Walkman at that time. Pen fun and pavilion www.biquge.info

AK240 is the flagship model of the top Hi-Fi player brand of South Korea's iriver (Ailihe) company, and the cost is very high due to the use of high-grade conductive materials. It has a 2.5mm balanced output port with full support for native DSD and dual-channel DAC balanced outputs. Two CirrusLogic CS4398 chips are used to support hardware decoding DSD, which can decode the sound source of the left and right channels at the same time. This portable device has truly reached the world's highest-end sound quality fidelity level.

And the Walkman itself has a massive 256GB of storage, so that large-capacity high-fidelity songs can be stored at will. The AK240's high-fidelity sound quality has been deeply rooted in the hearts of the people, and it has become the most expensive Walkman in the world when audiophiles talk about HiFi players.

The reason why this Walkman is the most expensive hi-fi portable player in the world is that it was limited to 1,000 units at the time, and it was distributed worldwide, with a list price of $6,000 per set.

At first, Mu Tianqi was only interested in a video song recorded by the Korean boy specifically for Mu Tianyu stored in this walkman.

She didn't know the value of this seemingly simple Walkman at the time, and she didn't pay attention to its high-fidelity quality. She just thinks that this little boy can write a song specifically for her brother, and it is so good that she never gets tired of listening to it.

Over time, she can sing by herself, and she is slowly getting used to listening to this song every day to relax herself, and while resting, she feels the same longing and reverence for her brother as she does.

Later, people began to use mobile phones a lot at every time of their lives. And Mu Tianqi slowly discovered that her AK240 is irreplaceable by any mobile phone.

Mu Tianqi never saw this little boy again, she only knew that her brother had saved him and his mother. After many years, Mu Tianqi only met this Korean boy named Lee Changmin once when he sent his brother Mu Tianyu away as a soldier. All these years had passed, and she had no memory of him.

Lee Chang-min had a great talent for music as a child, and when he was about to enter junior high school, he learned to compose and compose songs. He and his mother, who were traveling in Jiangcheng City at the time, encountered a car accident and were rescued by Mu Tianyu and Jin Chen in time. Otherwise, he and his mother might have been killed by the car explosion.

Originally, his father wanted to cultivate Lee Changmin's management ability from an early age and take over his business in the future.

But Lee Changmin was not interested in business since he was a child. His father really had no choice. He began to arrange for his son to travel around the world with his parents, mentioning his interest in business management.

As a result, he was in a car accident in Jiangcheng.

After the car accident, Lee Changmin's temperament changed drastically. He became fascinated by the fact that firefighters had jobs. After the father learned about it, he felt that the work of a firefighter could also train his son's courage and courage not to be afraid of hardships and difficulties.

Lee Changmin's father no longer blocked his son's ideals, but supported his son's ideas. I make a good start to my son and do what I like seriously.

Especially later, by chance, Li Changmin and Mu Tianyu met once in Beijing. And at that meeting, Li Changmin saw Mu Tianyu's real kung fu.

That day, Lee Changmin walked with his brother Xiaoyu, and several of the bodyguards arranged by his father when he went out were always with him. He had only managed to see his savior many years later, and he didn't want them to disturb him.

He deliberately caused a misunderstanding and let the bodyguards and Mu Tianyu make a move, but Mu Tianyu divided five by two, and knocked down all the bodyguards in a few very neat strokes.

Li Changmin has admired Mu Tianyu since he was a child, and he is determined to learn from people like Mu Tianyu and do what Mu Tianyu does!

He still remembered that he met with Brother Mu Tianyu at that time, and they talked about a lot of topics in the future and in the future.

"Brother Xiaoyu, I still heard Brother Chenchen call you when you saved me, and I knew that your name was Yu."

"Well, my name is Tianyu, but I know your name is Lee Changmin."

"Brother Xiaoyu, what is your full name?"

"Mu Tianyu."

"Oh, Brother Xiaoyu, you are my role model, you are my idol."

That meeting made Li Changmin even more determined, he also wanted to learn from Mu Tianyu's brother's skills, and he also wanted to engage in firefighting like Mu Tianyu's brother.

Therefore, as soon as he graduated from college, he went to Maryland International Fire Training in the United States to participate in very formal training, training and internships.

After returning to Japan, he was recommended to the United Nations by the Korean central government to become the United Nations Fire and Disaster Reduction Ambassador. The South Korean Fire Brigade has also officially awarded him the title of firefighter.

When Lee Changmin was serving at the United Nations, he happened to be working partners with Yuta Amada, the image ambassador of the United Nations for fire and disaster reduction recommended by Japan, and they became acquainted with each other and gradually became familiar with each other.

At this time, the construction of fire protection renovation of some important facilities in Syria soon began.

Mu Tianyu and his comrades-in-arms also began to conduct fire training and fire drills for local soldiers and civilians.

Initial firefighting training can only be a solution to firefighting primary and intermediate fires.

The most basic thing is to be proficient in understanding and mastering the use of fire extinguishers.

There are five main types of fire extinguishers for firefighting in Syria: dry powder fire extinguishers, foam fire extinguishers, carbon dioxide fire extinguishers, green water fire extinguishers and simple fire extinguishers.

The most versatile, widely used fire extinguisher, the best fire extinguishing effect, at present, is mainly dry powder fire extinguisher.

Therefore, Guan Tiangan powder fire extinguisher, Mu Tianyu arranged the study and understanding and training exercises, which are more advanced and more detailed.

The dry powder fire extinguisher is filled with dry powder fire extinguishing agent. Dry powder fire extinguishing agent is a dry and easy-to-flow fine powder used for fire extinguishing, which is composed of inorganic salts with fire extinguishing effect and a small amount of additives that are dried, crushed and mixed into fine solid powder. Compressed carbon dioxide is used to blow out a dry powder (mainly containing sodium bicarbonate) to extinguish the fire.

Structurally, the carbon dioxide gas or nitrogen gas in the dry powder fire extinguisher is actually the power source of the fire extinguisher, and this power is used to spray the dry powder in the bottle to extinguish the fire.

Dry powder is a dry, easy-to-flow fine solid powder, composed of a base material that can extinguish fires and additives such as moisture-proof agents, flow accelerators, and anti-caking agents.

The scope of application of dry powder fire extinguishers is divided into several situations, sodium bicarbonate dry powder fire extinguishers are suitable for flammable, combustible liquids, gases and initial fires of live equipment; In addition to the above-mentioned types of fires, ammonium phosphate dry powder fire extinguishers can also be used to extinguish the initial fire of solid substances.

However, the main disadvantage of dry powder fire extinguishers is that all kinds of dry powders cannot extinguish metal combustion fires.

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