The Yan brothers and sisters returned to Zuimo Huating's residence and found that in addition to Tian Yu, there was another person, Song Yi.

When Yan Feifan heard Song Yi’s purpose, he asked in surprise: “The infusion controller sample has been designed and prepared so quickly?”

Song Yi, who was dressed up in a refreshing manner, said: "Three weeks are not short."

"The functions of the product are not complex and easy to implement. The time spent in outsourcing the design team is more on functional integration, cost control and appearance design."

"Of course, it's just a sample, and the design team can still push it down according to our requirements, or continue to improve."

Song Yi introduced a few words and asked again: "Where is Su Ye?"

"She is going to work night shift in the hospital tonight!"

Yan Feifan replied, and invited him, "Song Yi, haven't had supper yet?"

"Eat a meal first, then talk about the product..."

Dinner was prepared in advance before Aunt Du Qiu went home to take care of the children who lived on campus.

There are six dishes and one soup on the dining table, which is quite rich...

Four people sat around the dining table.

Yan Feifan looked at Tian Yu who was sharpening his knife and frightened his food, and asked, "I will take the high school entrance examination in one month, why are you here again?"

Tian Yu smiled and said, "Brother Yan, after I came last week, I felt like I was full of electricity."

"I've been in school these days and I've been no longer confused and I've been dozing off in class. The questions the teacher is also clear at a glance."

Yan Feifan snorted and warned: "You just have a slick word. If the high school entrance examination is not ideal, I will let you cry without even crying."

Tian Yu's laughing expression stopped and changed to a timid and pitiful look.

"Brother Yan, I understand. They have been working very hard."

Yan Ziruo couldn't stand it anymore and said, "Xiaoyu, no matter what grades you get, we won't ignore you."

"Besides, we girls have our own advantages, and getting into prestigious schools is not our only way out."

Yan Feifan glared at his sister very dissatisfiedly, "Sister, you are very irresponsible to say this..."

Song Yi couldn't help but smile and said, "Is it okay to discuss Xiaoyu's education issues after dinner?"

"To be honest, I didn't eat much lunch, I'm really hungry now."

Yan Feifan is not talking, he raises his chopsticks to eat.

But within a while, the three women talked about the topic of beauty and plastic surgery.

"Freefan, you said that the skin on my face is dull, acne, and some spots, how should I get rid of it?"

Yan Feifan glanced at Song Yi's face and said, "You are mainly caused by endocrine problems."

"The routine work and rest, diet, use less cosmetics, and keep them for two or three months, and there will be a significant improvement."

Song Yi sighed lightly and said, "It's difficult. My work habits have been developed and it's not so easy to change."

"I really want to change, I can always do it."

Yan Feifan casually persuaded him and asked, "Your brother is still as busy as before?"

Song Yi's smile on her face became even stronger, saying: "He has changed a lot. First, several research and developments he led have been completed one after another."

"Where is, the person who can persuade him finally appeared."

"Otherwise, I won't have so much time to start a business with you."

"The person who persuaded him?"

He asked with a self-spoken gossip: "Have your brother found a girlfriend?"

Song Yi nodded and said, "She is also a doctor in your affiliated hospital. My brother and she had known each other in the United States before."

"Some time ago, the two of them contacted each other again."

"My brother, the technical maniac, somehow got his clues. After a while, they became boyfriend and girlfriend."

"Which doctor is it?" Yan Feifan couldn't help but be curious.

"Psychologist Tan Xiao."

"It turned out to be her!" Yan Feifan was really surprised.

However, these two people are a communication technology genius and a business genius, and the other is a talented and beautiful introduced talent, which is quite a match.

He said with a rude voice: "Doctor Tan Xiao, I know, but it is one of the most attractive beauties recognized by our hospital."

"Fefan has also mentioned her several times and said that her professionalism is very good."

She asked again: "Song Yi, that, that, ask a question that shouldn't be asked."

"This Dr. Tan is a very powerful psychologist."

"You're not worried that your brother had to fall in love with her through hypnosis and other means?"

Yan Feifan quickly spoke, "Sister, don't be naive, okay? The ability of a psychologist is not as mysterious as you think."

"No matter how powerful psychological hypnosis or hints are, they can only follow a person's basic cognition."

"It's like hypnotizing a person to kill someone. This goes against the basic perception of that person and it is impossible to succeed."

Tian Yu also said, "Brother Yan, I have watched some films and TV shows, and I have played some psychologists on it, but they are very powerful."

"That's just an exaggeration of art." Yan Feifan explained.

After the words of several people fell, Song Yi slowly said: "Even if my brother is really hypnotized, I will admit it."

"Now, although he still puts work first, he has become more concerned about physical health and maintenance."

"I don't have to stare at him all day."

Song Yi chuckled again and said, "I'll tell you another news. At the end of the month, my brother and I will move into here."

"At that time, it will be more convenient whether we meet or my brother and Dr. Tan's date..."

After dinner, Tian Yu was left to clean up the restaurant and wash dishes. The Yan brothers and sisters and Song Yi came to the master bedroom together.

Yan Feifan finally saw the infusion controller sample.

There are two samples.

One looks like a cuboid power bank, and the other is like a goose egg the size of a fist.

Yan Feifan picked it up and weighed it. It weighed about 300 grams.

"Because of the continuous heating function and the power consumption is large, the battery is heavier."

Song Yi explained, then picked up the cuboid-shaped sample and opened it in two from the side.

Yan Feifan saw a curved groove inside.

Song Yi introduced: "This groove is inlaid with infusion tubes."

"This is a heating device, and the temperature can be adjusted at will from 35 to 40 degrees."

"This is a light wave speed measurement device that can measure the infusion speed in real time."

"This is a slot. Once a blood reflux is found, it will be activated urgently and the infusion tube will be blocked."

“This is the control chip.”

“This big piece is equipped with a battery.”

"One full charge can last for sixteen hours under 40 degrees of heating."

After introducing several functional devices inside the controller, Song Yi pointed to the LCD touch display outside the infusion controller sample.

"The display screen can display the infusion speed, temperature, and countdown dynamically display the estimated infusion completion time."

"You can also adjust the infusion speed in reverse by setting the timing."

Song Yi also introduced: "The infusion controller also has a wireless Bluetooth device, which can be connected to the mini program of the computer or mobile phone."

"Patients can call the medical staff by touching the button."

"When the infusion is about to be completed, the infusion controller will automatically issue a sound prompt and transmit it to the medical staff's computer or mobile phone through the Bluetooth system..."

Yan Feifan nodded frequently, and after Song Yi introduced the relevant functions one by one, he asked: "Song Yi, these functions are quite good, how much is the cost?"

Song Yi asked back: "Please guess?"

Yan Feifan shook his head and said, "How can I guess this? Just tell me directly!"

Song Yi chuckled and said, "Freefan, Sister Ruoruo, this cost is closely related to the quantity."

"The cost of these two samples alone is more than one million."

"If all the standards of the sample are determined, let the OEM factory produce batches..."

"I have a preliminary estimate. The first batch of one million can control the R&D and manufacturing costs within 60 yuan."

"Sixty yuan is not expensive, and the cost is acceptable."

Yan Feifan said with some concern: "Song Yi, it's only one million, isn't it too much?"

Song Yi said helplessly: "Extraordinary, the first cooperation is a new product. This million is the minimum quantity for OEM production for large OEM factories with quality assurance."

"If we build our own factory and produce it for a long time, it will cost more..."
Chapter completed!