Noise-proof earmuffs are personal protective equipment that protects human hearing from strong noise.
Stereo creates a natural sound impression, which in turn enhances the sound quality to provide the effect. It has independent frequency modulation and volume adjustment, which can be adjusted at will. The comfort is very high, the headband is not too tight, and it is very comfortable to wear and easy to carry.
Battery life and the time the earcups are used in loud environments are inversely proportional to the amplification setting.
Replacing the battery is very easy as long as you open the battery cover and insert 2 1.5V batteries.
When wearing the anti-noise earmuffs, make close contact with the outer ear of the person to prevent sound from entering the middle and inner ears from the gap between the anti-noise earmuffs and the outer ear.
