Chapter 404

The total contact time between Guo Tailai and Tiffany's creative director was only about an hour. Originally, Guo Tailai wanted to invite Sophia Chufei to have lunch together, but he was politely refused. On the contrary, it was Chu Fei who invited Sophia to visit the various shopping malls in the capital, and Sophia happily agreed.

Well, the designer of the gold medal in the International Jewelry Competition should be more interesting to the creative director than the craftsman Guo Tailai! After all, she is a creative director, so she must feel that the design in her head is better than manual skills.

That's good, it doesn't prevent Guo Tailai from going back to the studio in the afternoon to make bone conduction headphones and throat vibrating microphones. When it was almost noon, Guo Tailai had a big meal in the private room of the hotel reserved by Mr. Ding, and then drove back to the studio alone.

I called in the morning and asked Lu Zhiming to prepare some materials and several communication modules. When Guo Tailai rushed to the studio, Lu Zhiming had already left the things and left.

Whether it is a microphone or a headset, one is input and the other is output. Without a communication module in the middle, it is definitely meaningless. However, Guo Tailai has no special ideas about the communication module for the time being. He is not in communication, and he is not professional in circuit design. It is better to do a good job of input and output and let professionals optimize the core part!

Relatively speaking, the circuits in earphones and microphones are very simple and are readily available. In fact, for these two gadgets, what Guo Tailai has to do is to change the input and output methods when using them. The circuit does not need to be changed at all, as long as the corresponding vibration parts are created. For Guo Tailai's skills, it is very simple.

It didn't take long for Guo Tailai to make several sets. After connecting the circuit and the communication module, Guo Tailai gave one to the soldier at the door and wore one for himself. After explaining how to use it, the two of them simply tested it in the yard.

Very good, it works well. You can hear very clearly if you only make calls. Soldiers with throat vibrating microphones can easily master it after simple training. As long as there is no problem with the communication module, normal use is very simple.

Of course, it is impossible to say how good the sound quality is just because the call effect is good. The bandwidth consumed by a simple call is very small, a few k data per second is enough, the bigger the clearer, but it is far from the high-fidelity sound quality of playing HIFI level. Fortunately, when talking on missions in the army, as long as the sound can be transmitted clearly, that's enough.

After finishing the experiment, Guo Tailai thought about it, and made dozens of sets without getting bored. He rounded up a whole number and made a total of one hundred sets. After finishing, Guo Tailai called his senior sister and notified Lu Zhiming by the way. Anyway, Guo Tailai must have made this thing for the Southern Group, so they must know.

Zhao Yanyan was specially approved by the organization to allow her to carry an encrypted mobile phone at work. After receiving a call from Guo Tailai asking her to receive a batch of new gadgets, Zhao Yanyan was still wondering what Guo Tailai had done. But Zhao Yanyan didn't ask any more questions, just agreed, and then went to ask his superiors for instructions.

While waiting for Zhao Yanyan, Guo Tailai casually took out the diamond ring Sophia gave him.

The heart-shaped diamond on this diamond ring is not of the highest grade, and its purity can only reach VVS1 at most (with very small inclusions, which are extremely difficult to see and invisible to the naked eye). Although the ruby ​​is of good grade, it is too small, and in From Guo Tai's perspective, there are still some flaws in the carving, which should have been done in a hurry. Especially the T letter mark, some edges are slightly rough, in the eyes of Guo Tailai, it is clearly a defective product.

But since it was a test, Guo Tailai didn't care much about it, the other party might think Guo Tailai was cheating if it was changed, so just keep it as it is.

The diamond and ruby ​​are of the same shape, but different in size, and they must be set in the center by Guo Tailai. This is very simple, Guo Tailai can do it easily.

But since he wants to show his skills, Guo Tailai certainly can't just do this. In the morning, Sophia had already veiledly despised him as a craftsman who is not as good as a designer, so Guo Tailai still won't fight for his own status? Otherwise, it would be embarrassing to be covered by Chu Fei.

Well, forget it, keep it simple! Guo Tai took a look at the way this diamond ring is set with diamonds, it is an ordinary claw setting, yes. Guo Tailai first simply calculated the refractive index, determined the position of the ruby, and then started to do it.

The claw setting is too common, so Guo Tailai casually removed these small claws on the ring, leaving only the beautiful base. After the diamond was taken off and placed in the hand, within five minutes, the ruby ​​was perfectly embedded in the diamond.

This is not over yet, Guo Tailai directly drilled a horizontal eye in the lower half of the diamond, and used a small platinum claw that was cut off to size and cut it through, cut off the excess, and then the two ends were just at the same level as the edge of the base. Neat, delicately welded to the edge of the base. In this way, this heart-shaped diamond seems to be directly glued to the base. From the outside, there is no inlay technology at all, which is exquisite.

Okay, I should be able to take it to a job. Guo Tailai put the ring box back casually, and continued to wait for Zhao Yanyan.

Zhao Yanyan didn't come alone, there were three people in a military vehicle. A driver, and a female lieutenant. Zhao Yanyan briefly introduced that the female lieutenant was a member of the same team as her.

"What exactly is it?" Zhao Yanyan looked very happy, and asked with a smile on seeing Guo Tailai.

"A gadget for communication." Guo Tailai took out two sets of microphones and earphones, gave each of Zhao Yanyan and the female lieutenant a set, and instructed them to put them on.

The two of them haven't used this kind of microphone and earphones that seem to be very unreasonable, and even the way of speaking needs to be practiced. However, after learning how to use it, Zhao Yanyan immediately realized the convenience of the microphone and earphone.

As Guo Tailai analyzed before, throat vibration microphones and bone conduction earphones are especially suitable for use in missions, which can ensure communication without hindering hearing. When necessary, you don't need to make a sound, you can express yourself by vibrating your throat, and it won't alarm the enemy, which is very convenient. This is simply a good thing tailored for special soldiers!

Lu Zhiming came a bit late, but it didn't prevent him from being able to catch up with the last trial period. After using it, I also feel very convenient, but the communication module is too rough, there is no way, the fat man didn't optimize this part at all, he just took the communication module he sent and used it directly.

Zhao Yanyan took 80 sets, Lu Zhiming took 20 sets, and they each took away as if they were sharing the spoils.

There was someone nearby, so Guo Tailai and Zhao Yanyan didn't have much intimacy, but when they parted, Zhao Yanyan still gave Guo Tailai a charming look while the female lieutenant didn't see it.