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Old January 29, 2020, 20:30   #15
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Join Date: Sep 2013
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Originally Posted by raubvogel View Post
The ad claims it is electronic, and you said 30dB without electronics. What does it get with electronics then?
This is how they explain it.

Impact Pro Sound Amplification Electronic Earmuff
The Howard Leight by Honeywell Impact Pro Sound Amplification Electronic Earmuff is designed for those looking for maximum hearing protection. It carries a Noise Reduction Rating (NRR) of 30 in both on and off mode. When the electronic ear protection is switched on, it employs built-in directional microphones that amplify range commands and other ambient sounds to a safe 82 dB, providing more natural listening and enhanced communication.
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