Comment by delecti

I got the "Engage 2 Plus". Though like I mentioned, they reduce sound by enough on their own that the included removable "Mute" wasn't worth the extra cost over the basic "Engage 2".

And one thing I forgot to mention is that they don't reduce the sounds of your own head. So your own voice sounds the same, and you still get that lip/tongue smacking effect that traditional earplugs have. Neither of those is really an issue, but I may have slightly oversold them with "level reduction across the frequency spectrum".