looking back
after 6000+ hours left seat of the 300/400's and now on the 800, i should have gotten a set of noise attenuator bobbies a lot earlier. sennheiser HMEC 25 KA. and even when battery is dead, much better than the generics in the flight deck. too much risk of gradual hearing loss and missed radio calls and misunderstood transmissions. the specific make or model really doesn't matter.
i got these after the collision between the DHL 757 and the whatever other aircraft over the german lake. the risk of a few precious seconds of missed/misunderstood calls struck me right between the eyes then!
should be required equipment and i am not one to wait for the airline to do it!!!!