i've been using a set of peltors for years- like as in 40 - no electronics, just a straight set of good muffs- btw- some yo-yo tried to tell me i need to upgrade a while back, but was he just fos- the cups and foams are still pliable- i got the distinct impression that he felt my equipment wasn't "as good " as his- well, tuff- i don't drive a ferrari either