Equipment Refining Research Institute is a word Huang Yueying learned in reality, and it is the name given to the equipment refining field of the Daxia Equipment Refining Academy.

At this time, two magic weapons were displayed in the central refining field of the Refining Research Institute.

A spherical magical weapon, over a meter in diameter. Looking closely, one could see runes and patterns as small as green beans painted all over it. The level of complexity was unprecedented.

Next to the spherical magic weapon, there is also a brick-sized magic weapon, which is also full of small and complex runes and array patterns.

If seen by a weapon refiner, he would surely be amazed at the exquisiteness and complexity of these two magic weapons.

These two magic weapons are the fruits of the hard work of the Equipment Refining Research Institute over this period of time, the [Improved Sound Transmission Magic Weapon] and the [Sound Transmission Array Base].

Previous sound transmission magic weapons were unstable and easily interrupted when affected by violent spiritual energy. They required the support of large-scale sound transmission formations, and the battlefield environment was unstable. Therefore, on the battlefield, a dedicated sound transmission formation was needed to maintain the team in order to stably use the sound transmission magic weapons.

Now the sound transmission array has been improved and can be used stably in an environment with violent spiritual power fluctuations.

The [Sound Transmission Array Base] is quite special. Huang Yueying drew inspiration from real-life communication base stations and asked the weapon refiners and array masters to shrink the large sound transmission array pattern to the size of mung beans and yellow beans, and draw it on this specially refined spherical embryo.

At the beginning, it failed many times because the sound transmission array required too many materials, it was difficult to reduce the array patterns, and there were too many of them. Once a pattern was drawn incorrectly, the entire [sound transmission array base] would be scrapped. The cost was too high and all the previous efforts were wasted.

Later, when the Nuwa Palace was completed, Huang Yueying knew that Nuwa was refined by splitting and then integrating it into a whole. Inspired by this, she tried to split the [Sound Transmission Array Base] into hundreds of groups.

The runes of the sound transmission array base are arranged in proportion and are drawn by many equipment refiners. Even if one of the runes is drawn incorrectly, the failed component will be scrapped and redrawn at a low cost and will not affect other components.

After all the components are completed, they will be fused into shape by a refiner who is proficient in fusion.

The group of weapon refiners who assembled the Nuwa Dharma Image became top-level helpers. After all the components were drawn, they integrated them all at once to form the current [Sound Transmission Array Base].

The array base is complete and completed in one go, and each rune can still respond to each other and play its role.

The improved version of the sound transmission set that the Equipment Refining Research Institute worked on day and night to develop was finally completed.

The weapon refiners in the research institute all had happy expressions on their faces.

This set of sound transmission magic weapon is stable and can be used in complex scenes with violent spiritual energy. They are well aware of the role and influence of the stable version of the sound transmission magic weapon.

…

When Lin Han arrived at the Refining Research Institute, he saw the prominent sound transmission magic weapon and sound transmission array in the center. The magic weapon's runes were so complex that they made his scalp tingle.

This is the most complicated magic weapon Lin Han has ever seen since entering the game.

After witnessing the wonders of the real world, Huang Yueying became obsessed with inventing magical instruments and hoped to restore the electrical appliances of the real world to the Dynasty World using magical instruments.

The success of the talent stone last time made Huang Yueying realize that this method of refining equipment was feasible, and her research on refining equipment entered a new stage.

After the establishment of the Daxia Equipment Refining Academy, she took away the most elite equipment refiners and formation masters from the Jixia Academy and has been working hard there ever since.

After receiving the good news from Huang Yueying, Lin Han rushed to the Daxia Equipment Refining Academy without stopping.

"What kind of magic weapon is this?"

"A magical sound transmission weapon."

"A magic weapon for transmitting sound? Don't we have a magic weapon for transmitting sound?" Lin Han asked in surprise.

"It can be used in violent aura environments and can also stabilize 'video calls'."

"Video call?"

The word Huang Yueying made Lin Han stunned. A noun from the real world had been brought into her.

"right."

"How did you do that?" Lin Han asked curiously.

"We integrated the illusion array and the mirage illusion into the sound transmission magic weapon. The mirage illusion can record images, and there is also the image display illusion that releases images. I combined them together."

"This sound transmission magic weapon integrates the sound transmission sound pattern, the mirage illusion formation that records images, and the image display illusion formation that releases sound and image."

"In order to combine the two formations in the simplest way, many of our refiners from the Refining Research Institute searched through all the formations and illusions in the Jixia Academy's library, and modified some of the runes of the sound transmission formation before successfully finding a way to combine them."

Huang Yueying spoke eloquently, her eyes shining. When she talked about weapon refining and formation, she had a special charm.

"How can so many formations be integrated into such a small magic weapon?"

"I consulted Teacher Liu Hui. He discovered through his research on formations that the runes used in weapon refining are essentially miniature formation patterns. He then used mathematical theory to scale down the spirit gathering formation to the size of a palm, proving the commonality between formation patterns and runes."

"Our weapon refiners experimented and tried thousands of times before we successfully simplified the array inscriptions, integrated them into the sound transmission magic weapon, and achieved stable operation. Let me demonstrate it to you."

Huang Yueying asked the weapon refiner to use another magic weapon to transmit sound.

When one sound transmission magic weapon activated, the other one began to flash. After both magic weapons were fully activated, the two sides appeared on the opposite side, a real-time transmission of the mirage illusion.

She actually made it happen.

Even if the surrounding spiritual energy is stirred up, forming an environment of violent spiritual energy, the sound transmission magic weapon still remains stable.

"How far is the sound transmission range?"

"Without the support of a sound transmission array base, it can directly transmit sound and mirage within a hundred miles. If a sound transmission array base is set up within a hundred miles, it can transmit sound a thousand miles away."

"Sound transmission array base?" Lin Han raised his eyebrows. It was the first time he heard this name.

"That's it, a communication base station." Huang Yueying said using terms that only Lin Han understood.

Lin Han looked at Huang Yueying in surprise.

Wow, it seems that Huang Yueying has learned a lot about real-world communications and has even developed a sound transmission array.

"How big is the sound transmission array?"

"That's it."

Huang Yueying pointed to the spherical magic weapon next to her.

"It requires spiritual energy to maintain itself, so when activating the sound transmission array, we need to set up a spirit gathering array to cover it to ensure its continued operation."

Lin Han looked at the ball.

Cultivation technology?

As expected, bringing Huang Yueying to the real world was a crucial decision. Now that the sound transmission system has been improved, the Great Xia Empire has benefited immensely.

"Husband, how is it?" Huang Yueying asked as if seeking credit.

"Can this sound transmission magic weapon be refined in large quantities?"

"Yes!" Huang Yueying said, "We were inspired by the construction method of the Nuwa statue. We cut these complex magic weapons into components, allowing entry-level refiners to refine and draw them. Then, all the components are handed over to senior refiners to refine into a whole. This way, production is very fast."

"feasible?"

"It works! These sound transmission magic weapons and this sound transmission array base were refined using this method. The weapon refiner responsible for the construction of the Nuwa statue successfully integrated the components perfectly in one go.

This is a non-combat magic weapon, not requiring high strength. It is cut into simple components with a single rune type. A beginner refiner can refine it with just a little practice, and it can be mass-produced quickly."

Wow, even the factory production set has been moved here.

Lin Han took a deep breath and gave Huang Yueying a thumbs up.