"You see, ice rats have a strong reaction to alarms, which means that monsters are afraid of the sound of alarms. Wu Yuan replied.

The Major looked suspiciously at the alarms that had been thrown on the ground, and soon he noticed the same.

"It seems that it is really scared. The major hurriedly said: "In that case, turn on all the alarms, and those megaphones, put the alarms into the megaphones!"

Wu Yuan did not stop the major's order, the soldiers immediately moved, and soon, several loudspeakers were set up in front of the trenches, and after connecting the power supply, a deafening alarm sound came from the loudspeaker.

The loud sound caused the monster to pause for a moment, but only a moment later, the monster moved slowly again.

"What's going on??," The major and Wu Yuan were a little dumbfounded at the same time, they hurriedly turned off those horns, the loud sound disappeared, and the original ticking sound of the alarm became clear again.

In this way, the monster's movement slowed down again, and the ice mouse stepped forward again.

"It's not a way to go on like this, the number of protective clothing is not much, and if the alarm is broken, there will be one less, we can't stop it for too long, Mr. Wu, do you have any other tricks?" The major looked at the damaged alarms one by one in distress, feeling that this time, he might have to use a vibrating crystal bomb.

"Uh... Wu Yuan couldn't think of a better way for a while, he originally expected those amplification devices to work, but he didn't expect that after the sound was amplified, the monster was not afraid.

It seems that the audio of the alarm has changed after the sound is amplified, and the monster is only afraid of the sound in a specific audio, and if the specific audio range that the monster is afraid of can be analyzed, it may be able to prevent the monster from moving further.

But now they're in the ruins, and there's no way to simulate any kind of audio in this place.

Wu Yuan's brows were about to twist now, but he had met a monster in this kind of place, by the way, are there any other devices that can be replaced? He turned to the major and said, "Do you have any devices here that can make sounds? such as musical instruments and the like." ”

"Musical instruments?" the major hurriedly asked loudly, "Do we have musical instruments in this place?"

"There's a trumpet in the barracks. A soldier replied.

"Someone will send it quickly!" the Major also remembered the old marching trumpet, would that thing work?

The soldier left in a hurry, but Wu Yuan said, "Are there any other musical instruments besides the trumpet?"

"Yes!" "Yes!" shouted a member of the White Eagle excavation team, who had not yet been evacuated, "There are quite a few musical instruments in the room over there. ”

"Over there?" Wu Yuan looked in the direction of the man's finger and found that the building was already behind the monster.

"You guys, go around from a distance and get as many instruments as you can. Wu Yuan immediately ordered someone to fetch a new instrument.

Huo Chi, who had been observing the battle from a distance, shook his head, he also found a problem with the alarm, Wu Yuan seemed to want to use the instrument to find the real weakness of the monster, but this was not easy to say.

Determining a specific audio range with an instrument requires a player who is familiar with the instrument, and how can you rabble find it casually?

"Everyone be careful, Wu Yuan has sent someone over to get the instrument. Huo Chi put his index finger to his lips, and everyone held their breath.

Soon, the soldiers made a detour from the path, rushed into the room, picked up some random musical instruments, and ran back to their lives.

It didn't take long for Wu Yuan to let the soldiers "play" the "music" in the square, and not only that, but he also asked the megaphone to be turned on again.

Unfortunately, none of these soldiers were musicians, and even these soldiers had not even touched any musical instruments before, so the "music" that these people barely played was transmitted through the loudspeaker, and the sound was really comparable to killing a pig and slaughtering a donkey!

"It's so ugly... Fu Ze couldn't help but say, "What are you playing?"

"Can't they find a serious musician?" Xiao Jian said: "There are people who can play on the Huaxia excavation team, and these White Eagles are too rubbish!"

"My ears!" Patassas covered her two furry ears, and she glanced at the white fox with some dissatisfaction, "Don't you think it's unpleasant?"

"I think so. The white fox said: "It's really hard to hear. ”

"Why don't you cover your ears?" asked Patassas, puzzled.

"Just let it pass through the mind, and the noise can also be ignored through the mood. The white fox replied indifferently.

However, when he said it profoundly, Patassas still covered his ears: "What a state of mind, useless, these voices are so harsh." ”

Huo Chi could understand what the white fox meant, and the anger in his chest now had been reduced a lot because of the impact of these noises.

"Huo Chi, is the sound of the violin so ugly?" Su Qingqing found through the binoculars that a few of those who were playing indiscriminately were playing the violin hard.

"Of course not. Huo Chi hurriedly said: "The sound of the violin is very melodious and pleasant, these guys don't know how to use the violin, so they played such an ugly sound." ”

"I understand, just like the erhu, you have to find the right place. Su Qingqing knew a little about the two-string erhu, and instantly understood the way the violin was played.

"Yes. Huo Chi nodded.

At this time, on the square, the random performance was completely ineffective, and in the noise, the monster continued to move towards the square.

Wu Yuan waited for a while, and then asked the soldiers to stop playing: "It seems that none of these instruments work, do any of you know other instruments?"

"He'll be able to trumpet. The major pointed to the soldier just now and said, "Let him try it later." ”

"Trumpet, will you do this?" Wu Yuan found a clarinet from the pile of instruments just now, and the soldier quickly shook his head and said: "No, I will only use the trumpet, this one looks like some kind of reed wind instrument, I really can't." ”

Seeing this, Wu Yuan frowned again: "It looks like it's all blown, what's the difference?" Wu Yuan put the black pipe to his mouth and blew it out hard, not to mention, he didn't blow out at all!

"MD! Is this thing broken?" Wu Yuan exerted his strength to eat, but he didn't make a sound at all, and in a fit of anger, he threw the exquisite black pipe unearthed from the ruins of this ruin on the ground!

The black pipe was smashed by him so hard that it suddenly shattered. Seeing this, Huo Chi couldn't help but the anger in his chest rose again, this Wu Yuan, he wouldn't blame the instrument!