Super Game Mall

"Beep!" Just as Yu Wei and the others were eating, a ticking sound came from Yu Wei. Yang Yujie and the others immediately focused their attention on him, looking at him curiously.

At this time, Yu Wei took out a square object from nowhere. There were several protruding buttons on the square object. He pressed a red button, and then a video appeared in front of everyone.

"Brother, where are you now? Won't you come for dinner?" The figure in the image inside is Qin Keqing, and at this time she is standing outside the house talking to Yu Wei.

"Oh, I met my friends in the village today, so I took them to eat in the cafeteria. I will take them to my place later." Yu Wei said to Qin Keqing.

"Okay, you guys eat first, I'll go to your place to prepare and entertain your friends later. That's it!" After Qin Keqing finished speaking, her figure disappeared from the image, and Yu Wei was also in the square

Pressing the blue button on the object ended the call.

At this time, the people around Yu Wei were all staring closely at the square object. This thing was so magical. They could see the other person's figure and hear the other person's speech at the same time.

Many people in the cafeteria saw the conversation between Yu Wei and Qin Keqing. After Yu Wei ended the call, many people immediately ran to him and looked curiously at the square object in Yu Wei's hand.

"Brother Wei, what is this! It's so magical. You can still see the other person and hear the other person's speech." Yang Minghui, who was sitting opposite, asked Yu Weidao curiously. Everyone else also looked at him expectantly.

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"This is a wireless phone. No matter where you are, as long as you have it, you can contact the other party and see what the other party is doing!" Yu Wei explained to them.

"Wireless phone?" Yang Minghui and the others obviously don't know the meaning of this word yet, but they know that this thing is very magical. They can contact each other at any time. With it, they can know where the other party is and their situation, just like the villagers.

Regarding the hunting team, if they had this wireless phone, they wouldn't have to send so many people up the mountain to look for them, and they could just know their situation through the wireless phone.

When others heard Yu Wei's explanation, they immediately thought of a lot. For example, if everyone had a wireless phone during the adventure exercise, their safety would be increased several times, and their chance of survival would be greatly increased.

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"Brother Wei! Do you still have this wireless phone? We want to buy it!" At this time, a student whom Yu Wei didn't know asked.

"Be decisive, this thing has just been made not long ago, and many functions are not yet mature. I will tell everyone when the experiment is completed."

Because Qin Keqing had been looking for him for a long time last time, Yu Wei also thought of the wireless phones in that world. If he had had a wireless phone at that time, he wouldn't have had so much trouble finding someone. That's why he thought of making a wireless phone himself.

And because there is a memory crystal ball in this world, the imaging principle is also easy to understand. After all, he installed the security monitoring system in the library now, so the wireless phone thing will not be difficult.

The only problem is how to connect one phone to another and whether there are wireless satellites in this world. And by chance, he stood in the square of the college, looked up at the sky, and saw the top of the library.

An idea suddenly came to mind: wouldn't it be enough to put the wireless receiving and forwarding device on the top of the college library? In this way, as long as it is within the range of the college, it can receive the signal of another phone.

The wireless forwarding receiver is equivalent to the management system of the library database. Through it, the signals within the range can be monitored, and the wireless phones can communicate with each other. So he made two wireless phones to try out the effect.

Now that the problem of signal connection is solved, the next step is the problem of energy. This problem becomes even more obvious. There are many energies that can be used in this world, among which spiritual stones can be used, and they are the most common. There are three grades of spiritual stones: upper, middle and lower.

There are also top-quality spiritual stones, and even high-level fairy stones and fairy crystals. What is not lacking is energy.

Through experiments, a low-grade spiritual stone can supply a wireless phone for at least three years, a medium-grade spiritual stone can supply it for at least ten years, and a high-grade spiritual stone can supply it for fifty years. So this problem was quickly solved.

Since the size of the wireless phone is inherently small, if a whole piece of spiritual stone is used as an energy source, it will be impossible to install it. This will greatly increase the size of the wireless phone, making it inconvenient to carry, so the energy storage device is modified.

After a while, a spiritual stone can be divided into five parts, and one part can be placed in the wireless phone at a time. A phone can hold up to three parts at the same time.

After several days of experiments, the functions of the wireless phone were relatively good and there were no shortcomings. At first, he just wanted a small number of people to use it in the college, and never thought of promoting it on a large scale, because in that case, it would

It still requires a lot of preparations and a lot of human and technical support, which is quite troublesome. But today so many people in the cafeteria knew about this thing, and many people wanted one.

Since there is a first one, there will be a second one, so it is certain that more and more people will use it, and he also promised that they will launch it. At least it can be used within the academy now. As for places outside the academy

, is still open to discussion, and that will be a matter for later.

If they promised to launch wireless phones, they would need to mass-produce them.

After dinner, Yu Wei took Yang Yujie and the others to the teacher's residence. At the foot of the mountain, Yu Wei pointed to the eighth house at the top, then took out the magic talisman given by the dean and stuck it on his body.

Just fly up with them in front.

Yang Yujie and the others have reached the foundation-building stage and can fly with swords. Each of them summons a sword and flies forward.

Yu Wei led them into his house. As soon as he walked in, he saw several plates of fruit on the table in the hall. The house was also clean, and he knew it was done by Qin Keqing.

"You're back! You guys sit down for a while, and I'll wash some more fruits." Hearing the noise, Qin Keqing came out of the kitchen and greeted, with a few ** fruits in his hand.

As soon as several people entered the house, they looked around curiously. The house here was bigger and better than the house in their village. Yu Wei now lives here, which makes them very envious, and it is also

What a happy life it is to have a beautiful sister taking care of you!

When Yang Yujie saw Qin Keqing, she felt jealous for some reason. She didn't like her being so close to Yu Wei, even though she was his sister, and this sister was not biological.

"Brother Wei, I'm going to help sister Keqing!" Yang Yujie said to Yu Wei, and then ran into the kitchen to help.

Yu Wei continued to take others to visit other parts of the house. After a while, Qin Keqing and Yang Yujie walked out of the kitchen. At the same time, they were talking and laughing, looking like good sisters.

"Everyone comes down to eat fruit!" Qin Keqing shouted upstairs.