Zohan Em054 Electronic Shooting Earmuffs designed for enthusiasts seeking hearing protection and enhancement. With ultra-light weight and soft headband design, it will not cause discomfort if worn for a long time. The NRR of passive noise reduction is 22 dB, which can effectively reduce the damage caused by loud noise. If you turn on the power, it will actively amplify the surrounding sound below 82 dB, so wearing headphones will not affect your normal communication. If the surrounding sound is higher than 82 dB, it will reduce the noise within 0.01s and effectively protect your ears. Zohan earmuffs also feature stereo positioning to ensure an enjoyable auditory experience. In addition, Zohan also has an independent volume adjustment button, four-hour automatic power-off setting, replaceable ear pad design, and an easily-open battery box cover for battery replacement.