Zhao Lin was originally dismissive of the bat's spirit.

Ever since he got the Spirit Beast Diagram, all he has been concerned about is how to improve his combat power, such as strength, speed, armor, and even the ability to discharge electricity like an electric eel.

I don't care much about the assistive abilities of hearing and smell.

But the experience of the previous days made him realize the importance of reconnaissance.

If he had the keen sense of hearing like a bat, he would never be attacked by a sneak attack!

What are the specialties of bats?

That's super hearing, of course.

In the previous life, any elementary school student knew that bats relied on echolocation to judge the direction, distance, size and other information of the target.

Radar was invented according to the principle of echolocation.

There is also a bat because of its poor eyesight, so its hearing can replace vision most of the time.

If you get this ability, do you still have to worry about sneak attacks?

Thinking of this, Zhao Lin couldn't hold it anymore, and took a deep breath at the chrysanthemum bat spirit that flew to his mouth.

A small cloud of silver light spread through the skull.

Unlike the old cattle, bears and blackhorned antelopes, which focus on the transformation of the body, the changes produced by the chrysanthemum bat are mainly concentrated in the head.

The spirit turned into three strands of silver light.

One stream of silver light enters the throat from the nose and the other two enter the left and right ears.

"Sudden ......"

Zhao Lin felt that an electric motor was installed in his throat, shaking at an extremely high frequency, his ears were buzzing, and all kinds of chaotic sounds followed.

Not physical pain, but mental torture.

He knew that this was the only way for the spirit to transform his body, and he was neither surprised nor frightened, he just closed his eyes and waited for the matter to pass.

After the tea work, the spirit beast picture flashed, and a chrysanthemum-headed bat appeared on the third grid.

"I really didn't expect that the third grid of the spirit beast diagram I actually chose was a bat."

Zhao Lin breathed a sigh of relief, listened attentively, and was surprised to find that his hearing had not changed.

"Why isn't there any movement?"

Zhao Lin frowned, the first few times he absorbed the essence, the effect was immediate, and the strength and speed were immediately blessed on his body.

"By the way, the ultrasound waves of bats are emitted from the nose and mouth, and then received from the ears when they encounter obstacles."

"In other words, I'm going to send out the ultrasound first!"

Zhao Lin's heart moved, and his Adam's apple trembled imperceptibly and rapidly.

It's like throwing a pebble into the tranquil waters of a lake, and the waves spread out in circles.

The waves hit the reef in the lake and swung back......

Immediately after, countless voices came into Zhao Lin's ears.

This sound is different from what the human ear hears, and the ultrasound waves are refracted back and bring all kinds of information along with it.

Zhao Lin can quickly sketch out the exact location, size, and shape of an object in his mind.

If the object is moving, the continuous ultrasound can also describe the direction of movement of the object, and even the detailed movements.

Although it is called hearing, it is actually a dual experience similar to hearing and vision!

Ten meters away in the grass, the dung husk lang was struggling to push the dung ball.

Squirrels nap in tree hollows on the edge of cliffs.

A grasshopper rests quietly on the dog's tail grass, greedily munching on the tender green blades of grass......

For a moment, Zhao Lin felt as if he had opened his eyes to the sky, overlooking the earth from above.

Everything that happens within a radius of 50 meters, all in sight!

He closed his eyes and experienced the wonder, as if the door to a new world had been opened.

Soon, however, he was overwhelmed by the influx of voices.

Because there are too many voices that can be received, it is comparable to information bombardment, and it is completely impossible to deal with it in a short period of time.

Zhao Lin quickly stopped the Adam's apple vibration, and his hearing immediately returned to normal.

But in this way, the annoyance is not annoying, but the excellent hearing is gone.

"It's annoying, or it's ineffective."

Zhao Lin thought for a while and thought of a way.

Instruct your Adam's apple to vibrate three times every other breath, so that you can receive information from your surroundings without disturbing it too much.

After practicing for about half an hour, this movement is already as natural as breathing.

It's like a "standby" state: it can monitor external sounds at all times, and if it detects something wrong, it will turn on its hearing with all its might.

If everything is in order, then there will be no unwanted effects.

"Very good, very good!"

Zhao Lin was sure in his heart, with this ability, he basically didn't have to worry about being sneak attacked.

With your own speed, it's a life-saving weapon.

"With such an outstanding ability, why didn't you think of it before?"

Zhao Lin began to re-examine his plan for the Spirit Beast Diagram.

It seems that I usually need to think more and learn more about the beasts of this world.

Three of the nine slots have been used, and the last six have to be spared.

As the martial arts improve, more alien beasts are seen, and there are more abilities waiting to be developed in the future.

Unlike other beasts, the transformation of the body of the chrysanthemum bat is relatively small, Zhao Lin did not feel very hungry, ate a few pieces of dry food casually, and then went into the cave to sleep.

The next day, return to Qinghe County.

Zhao Lin did not go directly to Liuhemen, but came to the morning market.

It's noisy and noisy, so it's a good place to practice listening.

Zhao Lin wandered around the morning market, his hearing still on standby, that is, every other breath, emitting three ultrasounds.

In this way, although it cannot receive continuous and complete sound, it can still hear all directions.

A few people walk behind them, some people are close, some people are far away, and you can see it without looking back!

Try firing on all cylinders again!

Zhao Lin's Adam's apple vibrated at high speed, and what he heard was a different scene.

"Cookbread, cookbread, freshly baked cookbread."

"Mrs. Lin, look at how beautiful this flower cloth is, pull a few feet back to make a pullover, it must look good!"

"The plow is damaged, I asked Zhang Mu'er in the town to add a pound and a half of iron, and beat a dozen ......"

The sound of footsteps, shouting, and the sound of pots and pans colliding in half the street all came to my face.

These sounds were too dense, and Zhao Lin felt uncomfortable again.

He suppressed the distractions in his heart, listened patiently, and tried to filter out the useless information in it, treating it as background white noise.

I have to say that people have a strong ability to adapt, Zhao Lin went from being nauseous and uncomfortable at the beginning, to gradually adapting, and then to fully accepting, it took less than half an hour.

"It's so useful!"

A smile appeared on Zhao Lin's face, if what happened a few days ago happened again, he would definitely be able to spot the assassin hiding behind the door from afar.

Although ultrasound cannot penetrate objects, unless the other party does not breathe and does not move, it is difficult to escape their own "magic ears".

Leave the morning market and come to Liuhemen.

With super hearing, Zhao Lin found that the breathing rhythm and the priority of each apprentice's steps were actually very different.

Although he couldn't directly judge a person's cultivation level based on this information, he could also estimate the person's state and realm.

"I didn't expect hearing to be so useful."

Zhao Lin took off his coat, walked to the iron pot, picked up the shovel, put the burned iron sand into a burlap bag, picked it up and beat his body.

"Brother Wyvern, the big boss has spoken, and I want you to do it as soon as possible."

When it was almost noon, Zhao Lin's ears suddenly heard a voice from a distance.