As for distractions when i step up to the line, i go over my stage plan in my head....I use the molded ear plugs and in taking a class i had an instructor ask me to try double plugging, so on top of the molded plugs i put on earmuffs too....it basically cut out a lot of background noise, but could still hear commands and beep....but it did eliminate some distractions of people talking....it helped me concentrate more and now double plug every stage.