[Natsuhiko is a big fool! 】

When Xia Yan saw such a line of text floating on the interface of his scroll, he couldn't help but feel a little toothache.

What is this doing?

You must know that this is the first historical moment for mankind to communicate through this bracelet, and it may be in the history books in the future, but you actually gave me such a sentence?

As the culprit, Kushina didn't know anything about it, and was exclaiming in amazement:

"Hey, isn't that what I just typed? Why do you have it over there? ”

Xia Yan sighed helplessly and explained:

"Because that's what this bracelet does."

Speaking of which, although primitive computers have appeared in this world, they are simply tools used to calculate and store information, and have not yet developed network technology, so it is normal for Kushina to feel strange about this.

So Xia Yan further explained:

"Actually, the principle is not complicated, Jiu Sinai, you should have learned the basic principle of perceiving the magic circle."

"That is, the chakra is converted into chakra waves through the oscillation circuit and emitted, and then the chakra waves reflected back are received and analyzed, so as to obtain information about the surrounding environment."

Jiu Sinai nodded with a bitter face.

As soon as Xia Yan talked about this, it reminded her of the hard years of learning these things.

Xia Yan continued:

"And the bracelet we wear on our hands actually works the same way, and it also has the function of transmitting and receiving chakrapo."

"It's just that unlike the sensing circle that receives the signals emitted by itself, our bracelets receive the signals emitted by each other."

"Actually, the moment Jiu Sinai pressed send just now, the text had already been loaded onto the Chakra Pop and launched."

"Then the chakrapo was received by my bracelet, and then it was demodulated and re-converted into a text message, and finally displayed on my scroll."

Since Jiu Sinai had already learned the principle of perceiving the magic circle, he probably understood what Natsuhiko meant after pondering for a while.

"yes, why didn't anyone think that the perception circle could be used like this!?" She clapped her hands and suddenly realized.

"Actually, someone has thought of it a long time ago."

Xia Yan smiled, "Have you forgotten the secret technique of the mountain clan?" ”

"Their mind-to-body technique, according to my speculation, probably uses this principle to turn the secret technique of perception into a secret technique that can communicate over long distances."

"But compared to my little invention that can only transmit the sound of words, their psychic communication is obviously much more sophisticated."

Xia Yan hasn't said that during the Fourth Ninja World War, there will also be machines that can enhance the effect of the Heart and Body Transmission Technique, and even allow Shikaku to talk to all the ninja alliances.

And although Kushina hadn't seen it with his own eyes, he had also heard of the iconic secret art of this mountain clan, so he quickly reacted.

So she looked at Xia Yan with strange eyes.

Following the Uchiha clan's writing wheel eyes and the Hyuga clan's white eyes, did Natsuhiko start copying the secret techniques of the Yamanaka clan again?

The Uchiha clan is optimistic, this is the real copy ninja.

Kushina complained in her heart.

And Xia Yan didn't notice Jiu Xinnai's abnormality, and continued:

"However, this technique of the mountain clan is very difficult, and there are not many people who know it, but this invention of mine can be popularized, and it can be regarded as a good victory."

"And my thing is just a prototype that has just been born, so naturally there are a lot of shortcomings."

"There is still a lot of room for optimization in the design of oscillation circuits, tuning circuits, modulation and demodulation of signals and chakra waves, etc."

"That's why I need your help, after all, the transmission power of this thing is a miracle, and you are the best candidate for testing with a large amount of chakra."

Hearing this, Jiu Sinai finally knew the reason why Xia Yan gave her this bracelet.

I don't know why, but I'm a little lost in my heart.

It turned out that Xia Yan was just hungry for her body.

Xia Yan saw that Jiu Sinai bowed her head and was silent, thinking that she was hesitating, and said again:

"That's right, this research will indeed take up a lot of your time and consume a lot of chakra, so it doesn't matter if you don't want to do it, I can also go to Fuyue to help test it."

Jiu Sinai was slightly stunned when she heard this, and she couldn't help but think of the scene of Xia Yan and Fu Yue wearing the same bracelet in her mind, and she suddenly shivered in her heart.

"Who said I didn't want to!"

Jiu Sinai hurriedly protected the bracelet, looking like she was afraid that she would be taken back by Xia Yan.

"I ...... I'm just still thinking about the principle you just said. She quibbled.

Although he didn't know why Jiu Sinai reacted so much, Xia Yan was also relieved to see that Jiu Sinai was willing to join the test.

It's done.

Although Natsuhiko asked Kushina to help with the test for the reasons he just said, it was more important so that Kushina could contact him at any time.

Then even if you are really kidnapped, you can ask him for help.

Even if the bracelet was taken away by the Cloud Hidden Ninja, Natsuhiko could also find Kushina's whereabouts through the built-in transmitter.

This wave is stable.

Then Xia Yan repeatedly told Jiu Sinai not to take off the bracelet as much as possible, and it was best to wear it all the time.

"I'll always wear this bracelet, and you can contact me at any time."

Kushina nodded softly.

For some reason, her face began to turn a little red again.

Now, it seems that he is with Xia Yan even when he is at home.

In the following time, Jiu Sinai, who had just gotten a new toy, naturally exchanged messages with Xia Yan with great interest, and deliberately ran out of the office to test the maximum communication distance of the bracelet.

It's a pity that the ninja school is too small, and even Natsuhiko's communication limit can't be measured.

After all, he has recently exercised his meridians for more than two months, and the amount of chakra has also improved a lot.

So Jiu Sinai volunteered to go outside to test, but Xia Yan finally stopped her.

If Jiu Sinai was allowed to wander around the street like this, wouldn't so many things that Xia Yan had done before be in vain?

After returning to the sealing office, Kushina still looked unsatisfied.

This kind of "thousands of miles of sound" experience is indeed quite novel for the ninja world where the Flying Eagle is still popular.

After all, even the radio or something, if Xia Yan hadn't introduced it in advance, they didn't know when they would know.

Then, after Jiu Sinai's curiosity passed, he thought of another question.

"Xia Yan, I remember that you just said that you wanted to popularize this bracelet."

"But this bracelet shouldn't be cheap, so how can it be popularized in the future?"

Kushina had studied the Perception Circle, and knew that the materials needed were valuable.

And the bracelet had to be made so small, so it would have to be made of rarer materials.

Not to mention, it seems that there are many other functions besides the perception circle.

You must know that Xia Yan's plan to popularize the dueling disc has not made much progress so far, let alone this bracelet with a higher technical content.

Xia Yan smiled slightly when he heard this, he naturally thought about this problem too.

Then he stretched out his hand, and a design was suddenly displayed on the scroll that appeared in front of him.

When Kushina looked closer, she saw that it was an architectural drawing of a black obelisk, and a black ring was drawn next to it, which looked very similar to the communication bracelet in her hand.

"What is this?" Kushina said curiously.

"That's the solution to your problem, Kushina."

Natsuhiko smiled meaningfully.

"It's tentatively called the Tower of Darkness."

(End of chapter)