3M CO/PELTOR Indoor/Outdoor Range Hearing Protection
EAR Plug Restricts Loud Noises While Allowing For Normal Tones
This patented technology provides two types of protection. Insert the olive
end for a constant NRR of 22dB. This is especially suited to all high level
noise and reverberation such as in an indoor range. With the yellow end
inserted, the patented filter takes over to provide variable level
protection for impulse noises without blocking normal communications such
as range commands. Noise reduction increases with level for weapons fire
above 110dB. (estimated NRR's from about 0 to 22dB).
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