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EE2951 sound proot earmuff
foldable earmuffsadjustable earmuff
• NRR(noise reduction rate) 20 decibel
•Protects hearing from harmful noises, but also allows you to hear normal conversation
•Weak sounds can even be amplified, so you hear them better than would without electronic ear muffs •Immediately attenuated noises above 82dB •On/off switch with volume control •Soft, wide and foam ear cushions and individually headband provide an even and consistent distribution of pressure around ears for best possible comfort •Powered by 2 AAA batteries (not included) •250 Hours of Battery LifeFrequency Z | 125 | 250 | 500 | 1000 | 2000 | 3150 | 4000 | 6300 | 8000 |
Mean att. | 1.0 | 15.0 | 21.0 | 25.0 | 33.0 | 33.0 | 30.0 | 35.0 | 38.0 |
Std dev. | 4.7 | 3.3 | 2.9 | 3.8 | 4.2 | 2.8 | 2.8 | 3.5 | 3.6 |
EE2951 sound proot earmuff