Ear defender - SureFire EP4 Sonic Defender Triple Flanged Filtered Earplugs

I used these in a precision rifle course, instead of my electronic ear muffs which always hinder my cheek weld position on the rifle stock. The EP4 earplugs where more than adequate, to control the sound levels, and I could still here the instructor all be it the voices where a bit muffled. The ear plug have a pluggable channel in them which would allow you to low the noise even further but I haven't had to use the plugs yet.
Great plugs and a reasonable price, I have serval pair now.