EE1621 Fashion electronic ear protector sound proof ear muff/ear muffler/safty earmuff,hearingprotection

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Item No.EE1621 Fashion electronic ear protector sound proof ear muff/ear muffler/safty earmuff,hearingprotection

Features:

NRR 21 dB

Amplification: 6 times

Recommend application :

shooter, hunter and worker involved in noisy surrounding

Details of  EE1621 Fashion electronic ear protector sound proof ear muff/ear muffler/safty earmuff,hearingprotection

NRR 21dB

Cut off immediately when sound over 82dB to keep your hearing in a safe level

Amplification 6 times to detect the ambient sounds

1/8in(3.5mm) input jack/plug for portable audio devices such as MP4,Ipod etc.

Adjustable headband with soft comfortable headband

Light weight

Foldable headband, easy for storage

Soft padded ear cushion

Independent electronic circuit on both cups

Powered by 4×1.5v AAA batteries over 200 hours lifetime(alkaline)

Idea for shooter, hunter and worker involved in noisy surrounding

 

ATTENUATION DATA ,:NRR 21dB

Frequency HZ 125 250 500 1000 2000 3150 4000 6300 8000
Mean Attenuation(dB). 1.0 15.5 22.2 24.6 33.7 32.4 29 39 39.3
Standard Deviation(dB) 4.3 2.5 2.6 2.6 3.7 2.9 1.9 3.6 3.3

 

 


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