Special Forces from Fire Phoenix

Zhang Lu has been practicing Bat Flower these days. He never thought that after entering the third form, he would hear such a sound that can affect human organs.

The third form seems to be very difficult!

I don't know which aspect it is for.

"Ding! The third form of host fusion bat flower is completed: bass audio."

A flood of information flooded the brain.

Zhang Lu understood that what he heard just now was infrasound!

There are three types of sound waves.

Normal sounds are audible to the human ear, while ultrasonic and infrasound waves are inaudible to the human ear.

Sound waves with a frequency less than 20 Hz (Hertz) are called infrasound waves.

Because infrasound waves of certain frequencies are close to or even the same as the vibration frequency of human organs, it is easy to resonate with human organs, which is very harmful to the human body and can cause death when it is dangerous.

In nature, sea storms, volcanic eruptions, large meteorite landings, tsunamis, lightning and thunder, infrasonic wave waves hitting the shore, water eddies, air turbulence, tornadoes, magnetic storms, aurora, earthquakes, etc. may be accompanied by the occurrence of infrasound waves.

In the human world, such things as nuclear explosions, missiles flying, artillery launches, ships sailing, cars racing, tall buildings and bridges shaking, even blowers, mixers, loudspeakers, etc. can also produce infrasound waves while making sound.

Zhang Lu's face showed joy, he was able to capture the infrasound, in fact, any subtle sound, movement, and stillness, he could never escape his bass frequency.

In this way, Zhang Lu can hear all the three sound bands that exist in the world.

This bat flower is too awesome!

The first form of noise-canceling sonar is the use of environmental positioning.

The second form of high-frequency decibels is to accept the surrounding ultrasonic waves, and can also be used in fighting to form a special resonance method, which increases the power of the attack!

The third form is bass audio, specifically for infrasound, subtle sounds.

Sure enough, a subtle sound was sensed.

This kind of sound was something Zhang Lu had never heard before.

At this moment, Zhang Lu was standing in front of the cave. He had just checked with ultrasonic waves and found something strange.

But what it is, it is difficult to judge at once!

With bass audio, however, this is different.

Zhang Lu heard some small mechanical sounds.

The existence of mechanical or electronic equipment in a cave is self-evident.

The entrance to the treasure under the mountain is here!

With a flash of Zhang Lu's figure, he entered the cave.

Abu and the others were stunned for a moment. For so many days, Zhang Lu was just wandering in front of the cave entrance.

This was the first time he entered the cave.

"The treasure must be here!"

Abu became excited, his dark face was slightly red, and he ordered: "Some people are guarding at the door, and the rest of them followed Mr. Leng into the cave."

The treasure under the mountain is the largest treasure of World War II.

As long as it is a treasure, there must be various organs inside. Every treasure hunter does not like the treasure to be taken away by others!

Abu ordered the soldiers to explore the way ahead, and he followed far behind.

Just five or six meters deep, there are still some natural lighting holes, and the corridor is quite bright.

But as the action deepened, everyone felt a chill.

The light went dark.

However, they all carried strong flashlights, which illuminated the square corridor about 3 meters wide and 3 meters high.

"snake!"

A soldier in front saw a snake.

Not one, but densely entangled, hundreds or thousands, seeing the soldier's scalp numb.

"Just avoid it, Mr. Leng is fine, what are you afraid of!" Abu shouted.

He also saw snakes appearing around the corridor, but behind him, all he saw were scattered snakes.

The strong light shone on the snakes, and the snakes began to stir.

what……

Someone was bitten by a poisonous snake and cut the snake with a dagger.

But these venomous snakes were very poisonous, and he fell to the ground quickly, and his body was submerged by the crawling snakes.

Many soldiers were bitten by snakes. There were poisonous snakes and non-venomous snakes. Once they were bitten by poisonous snakes, they did not carry anti-venom, and they would die.

The soldiers in front retreated one after another, not daring to go any further.

"There is a snake cave inside, you should watch at the entrance of the cave!"

After Zhang Lu finished speaking, he went straight in.

Abu walked to the front and saw the densely packed snakes, and his hair stood on end.

But how can cold drilling be all right?

He didn't seem to be afraid of snakes at all, and the snakes didn't seem to attack him actively.

Abu couldn't understand it, and guessed that the other party must have some special means, which made the snakes fearful.

It is not impossible to let them guard the entrance of the cave, but no one knows what treasures are inside unless they go deep in person.

What if the other party doesn't give it to him?

Abu hesitated, very unwilling to just play the role of guarding the entrance of the cave!

He wants to enter the inside of the treasure and get a share of it!

Chapter 2098 Bloody Serpent