it has an annoying clicking sound as it attempts to attenuate louder sounds. The attenuation seems to continue after the sound quits so that I have a noticeable near-dead spot that remains for half a second to a second or so. The click is loud enough that I can't tell the difference between the sound of somebody dropping something or cocking a hammer. I don't think this is normal since I also own a TacPro and it attenuates loud sounds just great: no clicks, no dead spots. I did send it in to peltor. They said they replaced the board but it didn't fix the problem
Pros: great with normal sounds
Cons: makes a loud and unexpected click when attenuating
This review was written in the old system and had content requirements that are different than reviews written today.