Everyone began to work step by step, and Zhang Wenkai also started his own work, and his job is to develop the next product.

Zhang Wenkai has given himself a clear positioning, that is, to be a research and development person, to turn all kinds of advanced technology theories given by Xiao Na into realizable technologies, and then hand them over to his own R&D department, so that the R&D department can turn him into a product and make a profit for himself.

At the beginning, Zhang Wenkai simply wanted to make money, but now it is different, with his own development, he has made a lot of money, so Zhang Wenkai's goal has slowly changed, and Zhang Wenkai's goal now is to make his own scientific and technological products fill every corner of people's lives, so that science and technology can benefit mankind.

This idea may be a little unrealistic, but Zhang Wenkai really wants to do it, maybe this is the idea that every Chinese descendant has had, 'reaching and helping the world' is imprinted in the bones of Chinese descendants.

Many people must have had this idea, but many people finally gave up, because they couldn't do it, they could only give up, it didn't matter whether it was good or bad, and they didn't have to worry about this problem, but Zhang Wenkai is different, he has the strength to do it, and he also has the capital to do it.

Since the launch of the wireless charger, although Zhang Wenkai has made a lot of money, Zhang Wenkai knows that this is not permanent, only temporary, because any product has its fatigue period, and weakness is a normal thing.

With the decline in the popularity of wireless chargers, people's attention to him has decreased a lot, as can be seen from the fact that Zhang Wenkai has received a lot of orders, because Zhang Wenkai has not received large orders for a long time.

When the first generation of wireless chargers is released, people may be curious, want to try it, when the second generation of built-in wireless charging to make a mobile phone, people may be surprised by his function, so go back and try to use, when the third generation of shared wireless chargers are produced, people may value them to share the function, share! It's also a way to show off.

And Zhang Wenkai deliberately did such a situation, which is just a marketing method.

Why the order is reduced, it is not because the price is too high, people will not spend more than a thousand more to add a wireless charging function just for a charging effect, of course, the local tyrant is an exception.

This is also the result that Zhang Wenkai wants, if the original 1,000 yuan product is suddenly reduced to 800 yuan, or lower, what will be the effect? People are not allowed to go crazy yet.

If such an advanced product is produced and made into a cabbage price, you think about how others will feel about this product, although it is very advanced, but it loses at the starting point.

The cost of Little Apple's mobile phone does not exceed two hundred dollars, you go and see how much he sells in China, about five thousand soft sister coins, the value of the product obviously does not match the price, but it is sought after by so many people, what is the reason? It's not that Lao Qiao has done a good job in marketing strategy, if the price of the little apple is set at 3,000 yuan, everyone in China will definitely have a small apple, but why he didn't do it, this question is worth pondering.

No matter how good the product is, no matter how high the price, it also needs reasonable marketing means to implement, or everything is in vain.

And Zhang Wenkai's idea is somewhat the same as that of Little Apple, that is, to raise the price first, to position people's minds, make people think that this wireless charger is a high-end product, and plant seeds in people's hearts that they feel very valuable, so that Zhang Wenkai's plan will be successful.

And the domestic mobile phone, which could only be mixed in the low-end market, gradually began to mix with the high-end mobile phone market through the function of wireless charger.

It can be seen from the foreign market of Huawei and Meizu companies, and it can be seen that the sales of foreign products of the two companies have skyrocketed, although they cannot prove that they have entered the high-end market, but they have decided a lot of things in terms of sales.

No matter what it is, there will always be the first person to try it.

With the R&D and production of nanomaterials, I can launch the fourth generation of wireless chargers.

With graphene battery, it can be charged efficiently within 20 meters, and ultra-long-distance wireless charging within 30 meters.

Then, through marketing means, the price of the fourth-generation wireless charger is set at 1,000 yuan, and then the first three generations of wireless chargers are greatly reduced, and then they will make a lot of money.

This is Zhang Wenkai's plan, a very perfect plan, so perfect that Zhang Wenkai can laugh every day when he thinks about this plan, and feels why he is so genius.

Now, Zhang Wenkai no longer accepts orders from other companies, and after all these orders are completed, Zhang Wenkai plans to start implementing his plan.

But before you can implement the plan, you still have a lot of important things to do.

Zhang Wenkai took out Cortana and put it on the table and asked, "Cortana, do you have the technology of wireless headphones?" ”

Yes, Zhang Wenkai is planning to make a wireless earphone, which is completely different from wireless earphones in the traditional sense.

Because whether it is a Bluetooth headset, an infrared headset, or a 2.4G headset, there are more or less shortcomings, and these shortcomings seriously affect the experience of wireless headphones.

Bluetooth headsets are now the mainstream of wireless headphones, but in Zhang Wenkai's view, the distance is still too short, and it is also easy to be interfered with by the same frequency.

Although the technology of infrared headphones is very mature, this technology can be said to be not very suitable for the setting of wireless headphones.

2.4G headset is no stranger to everyone, 2.4G wireless technology is used in all aspects, and 2.4G headset can reach a long distance, but it is still a hard flaw in size.

If you can combine the advantages of these wireless headphones, it will be perfect.

"Sir, wireless transmission technology can not only transmit energy, but also transmit information." Xiao Na's words, Zhang Wenkai didn't understand very well, and looked at Xiao Na puzzled.

"The current used in headphones is generally 10-80 milliamperes, and wireless transmission technology can realize transmission, and only a pair of intelligent conversion chips need to be added to convert the current signal into sound signals." Cortana explained in detail.

Zhang Wenkai was stunned, he didn't expect that wireless transmission technology still had this function, which really gave him a big surprise.

Zhang Wenkai knew the general principle, but he didn't know how to do it, so he asked Xiao Na for specific details.

Cortana's projection vanished, and several rays of light converged to form a schematic diagram of a pair of wireless headphones, and Cortana's voice rang out: "That's it, sir, his technique"

After listening to Xiao Na's detailed explanation, Zhang Wenkai understood the principle.

To put it simply, a wireless receiver is installed in the earphone, and a sound conversion module is installed to realize the function of the wireless earphone.

Draw power from the mobile phone, and at the same time receive power to drive the headset to run, and sound transmission two functions.

The mobile phone needs to install a small chip that can emit current.

Although there is some trouble, Zhang Wenkai is still extremely expectant.

But Zhang Wenkai had doubts about the distance, if the distance is about the same as the Bluetooth headset, then its meaning is basically gone.

"Cortana, it's not going to be close, is it?" Zhang Wenkai asked with some suspicion.

Xiao Na's projection recovered, Xiao Kou choked, and said, "Every technology that Xiao Na has taken out is very advanced. ”

After a pause, Cortana continued: "As for its effective distance, it can theoretically reach sixty meters, and if it encounters obstacles, the distance will be reduced, but not too much. ”

Sixty meters? At this distance, Zhang Wenkai must also study it, you can imagine a picture.

A girl is wearing a dress at home, if she lies on the bed and listens to songs with wired headphones, if she cooks or does housework or something, what if she wants to listen to songs, she can't wear her mobile phone on anything, how troublesome.

Some people will say, then use the stereo, then Zhang Wenkai can only say to you that you go and use the stereo, headphones are not suitable for you.

If you want to listen to good sound quality, you must use headphones or headsets, which involves the knowledge of a channel of one channel, just like listening to A**R (a method of massaging the ears through sound), can you hear the effect with the audio?

Zhang Wenkai hurriedly took out some prepared materials and said to Xiao Na: "Old rules, let's start." ”

Xiao Na naturally knows what Zhang Wenkai means when he says 'old rules', which is to teach relevant knowledge principles while instructing.

"Sir, you'll need to solder a sound conversion module first." Cortana pointed to this Wen Kai and said, while the projection showed the circuit diagram of the module.

Zhang Wenkai began to solder the sound conversion module according to the circuit diagram given by Xiao Na.

After soldering the sound conversion module, connect it to the wireless receiver, and then connect the headphones to the sound conversion module.

Soldering a current transmitter is somewhat like the transmitter end of a wireless charger, but much smaller than the transmitter end of a wireless charger.

Zhang Wenkai quickly completed the welding, and then it was everyone's favorite code knocking relief.

Zhang Wenkai sorted according to the code given by Xiao Na, and while studying, he typed it out on the computer, and a crackling sound came out of the mechanical keyboard.

Then the code program was written into the chip, and a wireless earphone was completed, of course, Zhang Wenkai has not tested whether he is easy to use.

Zhang Wenkai took out his three-heart mobile phone, and the paint on the edge of the mobile phone had already fallen off, but Zhang Wenkai did not change the mobile phone, not that he liked the three stars, because Zhang Wenkai did not have many requirements for the mobile phone, as long as he could pick up and play, Zhang Wenkai planned to get a Nokia 1110.

First plugged the current transmitter into the jack of the mobile phone, put on the wireless headphones, and first put a song casually, the sound of the song came out of the headphones, but the sound effect was a little poor, and it was accompanied by a slight current sound, so Zhang Wenkai told Xiao Na about this situation.

Cortana said without hesitation: "Due to the limitations of materials, this situation is normal. ”

Xiao Na's words made Zhang Wenkai feel at ease, as long as it was not a technical problem, put the phone in the house, Zhang Wenkai walked out of the office, and then experimented with the distance.

Zhang Wenkai walked around the company's corridor with a small circuit board in his hand and headphones in his ears, which soon attracted the attention of other employees of the company, although he was a little curious about the boss's behavior, but no one squeaked.

When Zhang Wenkai walked about fifty meters, the sound of the earphones became smaller and smaller, Zhang Wenkai knew that this was already the limit of wireless earphones, so he returned to the laboratory.

Copy the circuit board design drawings given by Cortana to the USB flash drive, and then copy the code program to the USB flash drive, add the limit on the number of uses and the non-copyable function, and leave the laboratory.