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Browning
Duo Ear Plugs have a unique patented technology that provides two
types of protection. Insert the olive colored end into your ear
for a constant 22 dB noise reduction. When the yellow end is inserted,
a patented filter takes over to provide variable level protection
for impulsive noises without blocking normal communications such
as range commands or normal voice levels.
Selected for use by the U.S. Military and NATO.
Noise Reduction Rating (NRR) up to 22 Decibels (dB)
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