3M sound insulation Earmuff major Noise prevention Artifact sleep use Earplugs student Silence sleep Industry noise reduction headset

t**7

Try it out as soon as you receive it. It really doesn't smell too good. I have been sleeping with my baby all the year round. I will wake up when there is any movement at night. Now that my baby is old and sleeps all night, I can also take my new equipment to isolate all external interference and have a normal rest.

晴**4

Size: a little small use experience: sound insulation effect is very good

t**8

Noise reduction is really cow leather, wearing glasses will not affect

c**x

This user did not fill in the evaluation.

t**9

Overall evaluation: no big effect use experience: there is no sound isolation on the human body, just reducing sound transmission

乐**家

The earmuffs are comfortable to wear without discomfort. The sound insulation effect is very good. With the earmuffs, you will no longer be afraid of noise. You can sleep safely. They are good and highly praised

t**0

High frequency noise reduction effect is very good, low frequency noise reduction effect is poor

t**4

The sound insulation effect meets the demand and is enough for nap

电**侠

Comfortable to wear.

我**1

The effect is very obvious. The world is much quieter when you wear it. There are no ears or collets. The quality is good, the style is good, and the workmanship is very strong and durable

子**野

Very good quality, fast delivery, good sound insulation effect, not too stuffy to wear, can be adjusted according to the size of the head

t**3

Very good effect, very sound proof

波**0

not bad Sound insulation effect is very good

噜**0

Overall evaluation: good size: appropriate use experience: good protection effect: good product material: good

t**4

The sound insulation effect is good, but it can only isolate noise, such as the sound of old fans, but it can't isolate human voice. The sound of roommate's ghost cry can't be isolated at all. After isolating the noise, the ghost cry becomes more obvious and has collapsed

t**6

With that kind of in ear memory cotton earplugs, the normal speaking sound is inaudible. It's still good. It's like being deaf. But you can still hear it when you shout loudly

东**7

Usage experience: I felt very good. I decided to buy another expensive one at his home. I really enjoyed the noise free environment

t**6

Very useful, good sound insulation effect, protective effect: good

新**3

There is a piano shop downstairs in the community that often plays gongs and drums. Sometimes it is 2:00 p.m. or 7:00 a.m. and it is very noisy, which affects my rest and study. Sometimes I don't have a rest in the middle of the night. I hope Canon can take a nap for a while. Alas, it's hard to say. I tried the sound proof earmuffs after they were received. The effect was very good. I could hardly hear any noise after wearing them. I was very satisfied.

陂**坡

The sound insulation effect is very good. It doesn't hurt to wear it