I recently used a set of Peltor Comtac IV's at jrtc. I like the open air design of the 4's, but a few potential issues came to light over a couple weeks:
-The earbud tips are quite easily lost, rendering the earpro inop.
-donning/removing a helmet every time you enter/exit a vehicle is a pain in the ass.
-time, these take a lot longer to put into action than ordinary style peltors.
-eliminate "double protection" capability
But, they do offer quite good hearing protection, and he ambient sound capabilities of peltors with much reduced bulk and heat, and despite a slight amount of bleedover (right comm input heard in left ear & vice versa) their communications capabilities are very useable.
I can't get a linc since I'm on my phone but just google comtac 4.
Good times,
Blake
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