Follow the molding instructions. I bought these to replace electronic earmuffs. Reason being, I do not like the earmuffs pressing against the frame of my shooting glasses into my temples. So bought these to fix that. I will say suppression wise. They are not as effect as traditional muffs electronic or not. If you are extremely concerned with hearing loss maybe use traditional muffs. Conversations no problem, didnt have a problem communicating off or on range with these in. From a comfort standpoint much more enjoyable shooting experience not having the frames pressing into my temples. Inner ear comfort does take some getting use too as you are in fact pushing the dB filter into your ear canal. So if you find earbuds uncomfortable these are not for you.

They were easy to mold. Fit great after molding. Would recommend it

These are a compromise between extreme sound blocking by wearing plugs plus muffs vs being able to carry on a normal conversation without any ear protection. Electronic plugs might be closer to being able to hear normally between gunfire but they offer no better hearing protection than the Decibullz and cost 4 to 10 times more. _x000D_

Tried this at an indoor range and I can say this honestly works, with one small caveat. Does fine with small calibers like 9mm, but I did get a small ringing with my 45ACP, so I used more traditional over ear from that point forward. Didn’t want to try with larger since I wasn’t confident it would hold with 556 or larger.

Easy to mold. Noise cancellation is a bit less than I hoped for, but I can hear non percussive sounds almost like I’m not wearing them. Very comfortable even for long periods. Ok for shooting 22 cal, but 9 mm or bigger is a bit too loud, I wear them under electronic muffs and it’s a great combination.