The two people tinkered for a while, and then asked Yu Fei to take them through the remaining three black boxes. Finally, after reading the last black box, one of them spoke.

"This is the most advanced spy equipment. It captures information through signal reflection between four boxes. It is somewhat similar to sonar, but more advanced than sonar. With the four devices surrounding it, the movement of any object can be detected.

It can also collect sound information, which is equivalent to a 360-degree monitor with no blind spots, and all information about the people inside can be obtained at all times."

The man said to Yu Fei while sorting out information on his computer.

"Then as long as you stand outside the company, they won't be able to detect you?"

Yu Fei seemed to understand a little bit about the function of this thing.

"Yes, it will be fine if you don't stand in the middle of these four devices!"

The man nodded. After a while, he completely understood the functions of these four boxes, and then he dared to speak confidently.

"I'm not a high-ranking official. Using such high-tech equipment on me is like using a cannon to kill mosquitoes!"

Yu Fei rolled his eyes speechlessly. If he hadn't seen this thing hidden under the wall with his own eyes, he would probably have been kept in the dark, and his every move in the future would be under the surveillance of others.

"Maybe you think you have no value? The vegetables you grow and the newly released truffles have attracted a lot of attention. If your technology is stolen, you can immediately get high profits."

Another investigator who had been silent until now raised his head and said to Yu Fei seriously.

"How did you know?"

Yu Fei was very confused as to why this guy looked so powerful and knew everything.

"Because of our work, we are not ordinary police officers."

The man said ambiguously, then raised his eyebrows at Yu Fei, leaving Yu Fei to figure out the rest.

Yu Fei was not stupid, and he immediately realized that these two people most likely belonged to a special department. Their work was different from that of ordinary police officers, and they might not be involved in the charge.

"By the way, thank you for your help. We dug out a lot of useful information from the people you sent to the island country. The country will remember your contributions. So we also secretly helped you solve a lot of problems.

For example, a few days ago, there were ninjas from the island nation sneaking into the country. The target is you. We will help you by the way and send them back to the eight-headed snake they admire."

Another person raised his head and added, it turned out that there were so many things that Du Fei didn't know about, and based on what these two people said, they actually killed the islanders directly. The eight-headed snake was a god at best, but a god at worst.

The dot is a ghost. If you send it to its side, doesn't it mean you are killed?

"Then who might have put these four things?"

Yu Fei asked, pointing to the black box.

"I'll tell you some unfortunate news. If I'm still determined to destroy the island country, it might still be them!"

The policeman who was tinkering with the computer raised his head and said.

"If I had known, I would have caught him and tortured him to extract a confession!"

After Yu Fei heard this, he felt his teeth itch with hatred. How could those products from the island country have psoriasis?

"Don't worry, the receipts collected by this thing must be collected in person and taken away with specially connected instruments. Maybe we can follow the clues and catch a few more!"

A man stood up, and Yu Fei could see clearly that his face was a little pale, not as if he was weak, but as if he had not seen the sun for a long time.

"You mean, you two are still staying here and not leaving?"

Yu Fei asked confusedly why there seemed to be two more people eating and drinking.

In fact, Yu Fei's main worry is not that he is eating, drinking or drinking, but that these two people are not ordinary people. They seem to have strong investigative capabilities, and they also have equipment that he cannot understand. It seems that they are not interested in energy and other things.

Things are very sensitive, and Yu Fei has always suspected that spiritual energy is a kind of advanced energy. If he is discovered, it will be revealed.

"If you are willing to take him in, we wouldn't mind staying and protecting you for a while."

The two people looked at each other, and then spoke tactfully, as if they really wanted to stay.

"Thank you for your kindness. I will call the police if there is any difficulty!"

Yu Fei immediately refused and kept two bombs beside him. He was not that stupid. He had the right to refuse anyway.

"Okay, then be careful. If someone from the island shows up, you can make this call."

One of the people handed Yu Fei a card similar to a business card, with only a phone number written on it and nothing else.

"Well, okay, thank you!"

Yu Fei quickly put away the business card. This was indeed a good thing. After all, these people didn't look like ordinary people. They might be able to help him something that others couldn't.

When the two people saw the business card that Yu Fei had put away, they packed up their things with confidence and turned to leave.

Seeing the two driving away in a car, Yu Fei frowned slightly, took out the business card again, and studied it in his hand.

The business card looked like it was made of plastic, and it felt good in the hand. However, when Yu Fei took the business card in his hand, he felt something was wrong. The two left, and immediately used aura to explore, and soon found out.

secret.

There is actually a very tiny circuit hidden in the business card, which is even more sophisticated than a black box hidden in the wall. Hidden in a business card that is only one millimeter thick, most people really cannot find it.

Although Yu Fei did not find anything like a battery inside, he still found that this thing seemed to be working.

This discovery surprised Yu Fei. It was beyond common sense. After all, energy conservation applies in most situations. So far, Yu Fei has only found that internal force and aura seem to be a bit beyond common sense.

He curiously took the business card in his hand and slowly studied it. He wanted to know what the function of this thing was, what its principle was, and why it could operate without any energy.

However, Yu Fei didn't have a high degree of education, let alone such a high-tech thing. He used his spiritual energy to study every corner of the business card, but still couldn't find the operating mechanism. It seemed that the operation of the circuit in it was energy generated out of thin air.

Yu Fei suddenly felt that his head was a little big. Before the jackal was sent out, another cheetah was lured back. He suddenly felt like a gorilla in a cage in a zoo. There were countless eyes around him observing his every move.

A move.

After thinking for a while, Yu Fei's expression suddenly changed. Since he has such sophisticated equipment, doesn't his usual contact with Chen Dong also mean that he is under the surveillance of others? It seems that he is monitoring his contact with the outside world. Compared with this picture

The technology for business cards is even simpler.

However, he didn't seem to be very interested in what happened between him and Chen Dong. Besides, he and Chen Dong were both very restrained and did not do anything harmful to nature. Instead, they ultimately contributed to social harmony and stability.

But now Yu Fei is worried about growing old. If someone comes to fight with him with real swords and guns, he is not afraid, but if someone plays with high technology and IQ, then it will be hard to guard against.

The most important thing is that they don't know whether they are enemies or friends. These two people were called by Chen Dong, but they secretly left behind a back-up. Yu Fei didn't know what their purpose was. This business card suddenly became a hot potato.

Yu Fei didn't know what to do.

After thinking for a while, Yu Fei conveniently put the business card into his Dragon Ball Space. Yu Fei had long discovered that the Dragon Ball Space was isolated from the outside world. After putting his mobile phone in, not only could he not receive calls or text messages, but he could even connect to it inside.

The time will not change. When you put it in, the phone still displays the same time when you take it out.

That's why Yu Fei put the business card into the Dragon Ball space so that he can take it out at any time without fear of being watched.

The moment Yu Fei put away his business card, two people who were driving away from Tai'e Village heard the sound of beeping. The other person quickly turned on the extraordinary computer and saw a red dot on the screen getting bigger and bigger.

Dark, and finally disappeared completely, and he suddenly showed an incredible look.

"The signal disappeared! Did Yu Fei notice it?"

The man checking the computer raised his head and said to the driver.

"Maybe he thinks it's of no use, so it's not impossible to throw it into the fire and burn it."

The driver turned around and said with a grin.

"How could it be such a coincidence? The fire wouldn't burn so quickly."

The person playing with the computer saw that the signal disappeared very quickly. He calculated it and found that it disappeared suddenly without any warning and the signal did not decay.

"Anyway, for whatever reason, do you have the nerve to go back and ask?"

The driver curled his lips and asked.

Both of them fell silent immediately. They thought they had left a wonderful back-up plan, but unexpectedly, Yu Fei seemed to have discovered it, so they had to give it up.

Yu Fei went back to tell the news to others, because he was afraid that if the other party came to collect information and was not caught, then the other party might get some information, so in the next time, everyone should not talk about any personal matters after going back, and do not

Talking about work, now that technology is advanced, I and others have ways to prevent their information from being intercepted. If anything happens, we can communicate through text.

Hearing what Yu Fei said, everyone else was shocked. They couldn't believe that there was such a method. They all wanted to go back and take out the black box to study it, but Yu Fei immediately ordered that no one should touch the black box, and they were discovered.

.

After everyone finished talking about the precautions, they went back to the company. However, after entering the door, everyone looked strange. Because of the existence of the four black boxes, everyone felt very awkward. When they wanted to speak, they had to think for a long time, for fear of

Said something that shouldn't have been said.

Then a strange scene occurred. When everyone met and communicated, they all inexplicably turned to sign language. However, they were all individually invented sign languages. There was also a language barrier, which made people laugh and cry.

The comeback of the islanders made Yu Fei very angry. These guys were really desperate and wanted to steal his things. After being tricked by him, they still stuck to them.

However, Yu Fei heard some information from the two people in the special department. This time, the islanders may not only be seeking revenge. It seems that they are interested in their vegetables and truffles. Sure enough, they are a group of hungry dogs.

The smell makes my mouth water.

If they adopt the method of acquisition and cooperation, I can still understand it and can completely refuse it. At least they have a good attitude from the beginning. However, for those hungry dogs who grew up on the island, their first choice is to steal.

On the one hand, Yu Fei does not have any good planting skills at all. Everything relies on spiritual energy, so the other party cannot get any useful information. On the other hand, even if he really has such skills, even if he destroys them, he will not be able to get them.

Islanders get it.
Chapter completed!