readx;? Chapter 186: Ultrasonic Attack

Xia Feng's eyes have been staring at the infrared emitting tube, hoping to be able to sense infrared rays with vision. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Unfortunately, after replacing the infrared tubes of five frequencies, nothing has been found.

The same goes for the five frequencies of UV tubes!

Maybe the eyes don't see the visible light completely, how can it break through the confinement of seeing infrared and ultraviolet rays?

Looking back on the past year, the continuous luck has enabled Xia Feng to overcome many crises, can the luck in the future come in a crisis?

With a bitter smile in his heart, Xia Feng still took out the ultrasonic transmitter.

With a joking heart, the power switch of the ultrasonic transmitter was turned on, and there was a potentiometer on the transmitter to adjust the frequency. Hold your ears close to the transmitter and slowly adjust the knob on the potentiometer.

Once, twice, what does the ear seem to feel?

Did you hear the ultrasound?

Raise your hearing to the maximum and take turns listening to the sound on the transmitter tube with both ears.

Suddenly, as if a diaphragm had been broken, a harsh noise reached both ears.

His eyes became blurry, and a feeling of nausea and wanting to vomit came over him.

Xia Feng immediately lowered his hearing, turned off the power of the ultrasonic transmitter, and the harsh noise disappeared immediately!

"Breakthrough!" Xia Feng got up and shouted excitedly! How easy is it to break through the auditory line? Is all this real?

"Knock! knock! Zhao Hai, what's the matter?" there was a knock at the door.

"It's fine!"

Xia Feng was a little carried away, such an excited mood was not all the reason for the breakthrough in the auditory sense.

Such a simple device can break through. With his own strength, can he make up the things that break through all the five senses? It may be difficult, but the breakthrough just now gave him a glimmer of hope.

Zhao Hai's identity is becoming more and more dangerous, and it is time to give up. But where's the backup identity?

Mr. Qian of Jinhui Nightclub promised to find him a reliable identity, but Xia Feng understood that Mr. Qian was originally a person who was good at grasping other people's handles, and even if he found such an identity, he could only be used as an emergency backup.

After closing his eyes for a while, the blurred eyes and the feeling of nausea disappeared.

These symptoms are all caused by ultrasound, Xia Feng has consulted a lot of information about the five senses, and he can be said to know ultrasound well.

The frequency of the ultrasonic transmitter in front of you is around 30,000 hertz. The Force-modified ear, which can hear ultrasound waves at 30,000 hertz, has reached the limits of the structure of the human ear. The upper limit could not be raised any longer, and Xingyun had already told Xia Feng about this situation.

Turn the ultrasound transmitter back on and you can hear the harsh noise of the ultrasound without raising your hearing.

Xia Feng had no choice but to reduce the induction of his hearing to ultrasound, and constantly adjusted the potentiometer, and the knob of the potentiometer was in the middle to the left, which was the highest point of hearing the ultrasound. The value of ultrasound is about 20,000 hertz.

What's the use of just hearing ultrasound? Just to reach the upper limit of hearing?

Xia Feng was a little unwilling, humans can speak because they can hear sounds. People who are deaf can't speak, that's why.

The highest sound frequency that humans can produce is 25,000 hertz, and Xia Feng's Force-modified throat should be able to reach the limit of the structure of the human throat.

The second lieutenant outside the door kept hearing the shrill pitches in the room. After the second lieutenant was glared at by the chief, he had already turned into a frightened bird. He knew that Zhao Hai in the room was an amazing cultivator, an immortal-like existence, did the abnormal noise in the room need to be reported to the above?

Half an hour later, the shrill treble in the room was gone. The second lieutenant's eyes were a little blurry, his body was very uncomfortable, as if he had a feeling of nausea, he walked around suspiciously, and when he was away from Zhao Hai's room, his symptoms were a little lighter.

The people living in the surrounding rooms came out one after another, asking each other in amazement, and their bodies all felt something strange.

The second lieutenant understood that this might be something done by Zhao Hai, and such a guess was not enough to report to his superiors. He cautiously walked to the door and knocked on Zhao Hai's door gently.

Xia Feng heard a knock on the door and knew that it was the practice of ultrasound that affected others. I packed up my things and opened the door.

"Zhao Hai, what noise did you hear just now, did you feel uncomfortable?" asked the second lieutenant cautiously and respectfully.

"Hehe, is there any noise? Why don't I feel it? I'm going to go out and take a walk. ”

The second lieutenant nervously followed behind Xia Feng, although he had many doubts in his heart, but could he ask Zhao Hai directly? Obviously not, his task was to take care of Zhao Hai.

The ability to emit ultrasonic waves has been practiced incredibly like this, maybe the throat after the transformation of the Force has already had such an ability, but Xia Feng doesn't know how to use it.

The frequency of sound waves emitted by the throat is around 27,000 hertz, which is close to the upper line of the ear to feel the ultrasound.

Although this kind of ultrasound is much lower than the ultrasound emitted by bats, it has many uses.

Close your eyes, cough at the 100-meter perimeter wall, and an ultrasonic wave is emitted, and instantly the ear perceives an obstruction 100 meters away, which is the principle of bat ultrasonic positioning.

From now on, Xia Feng can perceive everything around him with his sense of hearing without using his divine sense and vision! Of course, the use of ultrasound is more than that. Ultrasound can temporarily blind and incapacitate a person, and ultrasound can also be used for remote heating and cutting.

Ultrasonic will be the same as the Divine Sense Knife, becoming a sharp weapon for Xia Feng's long-range attack, and the attack distance of the ultrasonic wave is far greater than the distance of the Divine Sense Knife, and the most surprising thing for Xia Feng is that the ultrasonic attack is not as lethal as the Divine Sense Knife.

For Xia Feng, who is not good at killing, ultrasonic is the best choice for the enemy.

It's a pity that in the headquarters garrison compound, there is no way to practice ultrasonic attacks.

A soldier who ran over interrupted the ambitious Xia Feng.

General Zhang invited Zhao Hai to his office.

Walking towards General Zhang's office, thinking about how he could find a reason to leave Khotan.

General Zhang stepped forward very enthusiastically, holding Xia Feng's hand tightly with both hands, and his previous lofty expression was swept away.

"Zhao Hai, the old chief ordered, let me accompany you to rush back to the Eastern Capital immediately!"

Xia Feng was a little confused, is this going back?

"Haha! Zhao Hai, you have been in Khotan for less than a day, Mayor Wang wants to arrange a guard in Khotan, there is no way to send you, this is a local product that Mayor Wang brought you, this is what I mean," General Zhang said, pointing to the two boxes on the ground.

Xia Feng hurriedly said thank you, the so-called native product must be jade.

The divine sense swept into the two suitcases, Xia Feng was shocked, all of them were jade containing the Force, and they had also found a way to find the Force stone?

"General Zhang, do you also have a way to find spiritual power stones?" Xia Feng asked casually.

"Haha, Zhao Hai, you are so powerful, you can tell at a glance that the box contains stones with spiritual power. This matter is simple, we secretly imported a device from the United States that can detect spiritual power. ”

After hearing this, Xia Feng was shocked in his heart, human technology had reached this level, and he could already check out his spiritual power. Why hasn't there been any news about this on the Internet? Is it a military secret?

The United States has produced testing equipment, and it was bought by the Chinese ** party, which does not seem to be a particularly confidential thing.

"Okay, that's good," Xia Feng forcibly suppressed his excitement and said seemingly casually.

"Zhao Hai, let's take a helicopter to Garcheng, and then take a military plane directly to the Eastern Capital!"

Is there anything urgent? Xia Feng was a little puzzled, and it didn't look like Zhao Hai's identity was exposed.

Following General Zhang, he came to the top floor of the office building, where a military helicopter was parked on the top platform.

Xia Feng had seen this kind of plane three hundred meters away, and the Kash people's shoulder-mounted bazooka could easily shoot it down.

"Zhao Hai, have you ever been a helicopter?" General Zhang asked loudly.

Coming to his senses from his stunned state, Xia Feng hurriedly said, "No, no, it's the first time I've seen it up close!"

Xia Feng stretched his consciousness and glanced around, what if the Kash people were aiming at the helicopter with a bazooka on their shoulders?

Hopefully, the Kersh are not in ambush within range of the bazookas.

"General Zhang, who was the assassin last night? Do you have any news?" Xia Feng stood still and did not walk towards the helicopter.

General Zhang walked up to Xia Feng, patted him on the shoulder, and said with some intriguing, "Haha, your grandfather said it, you may know!"

"Uh-huh, yes, but this helicopter is within range of a shoulder-fired rocket!" After Xia Feng finished speaking, he picked up the two suitcases and walked towards the helicopter, he knew in his heart that it was strange that the assassin was targeting himself and not causing others to speculate.

Moreover, the headquarters compound was full of surveillance, and a little analysis of the video showed that the assassin and Xia Feng used the same dagger.

What if they find out that they are Imin?

General Zhang was stunned after listening to Zhao Hai's words, and looked at Zhao Hai who turned to leave, his legs and stomach trembled a little.

The downed helicopter, after the analysis of experts, was shot down by a shoulder-fired rocket, this report is in the bag in his hand, ready to go to the eastern capital and report to the old chief, how did Zhao Hai know about this matter?

A chill surged from his heart and changed his whole body, could it be that this Zhao Hai was at the scene of the downing of the helicopter. The on-site investigation report states that the Kash were attacked by unknown persons, and that three people who were temporarily staying at the Kash were also killed by unknown persons.

From the corpses of the Kash people found, it was found that the Kash people were all killed by internal force masters, could it be that the unknown person was Zhao Hai.

Is Yi Min, who rescued four young people from Guangdong in Kunshan Village, the Zhao Hai in front of him?

A series of questions flashed in General Zhang's mind, could it be that this was all arranged by the old chief! But no matter how Zhao Hai said it, he was either an enemy or a friend. Now that Zhao Hai has gotten on the helicopter, what is he afraid of!

General Zhang calmed his mind and strode towards the helicopter.

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