The Microphone Muff is the easiest and most effective way to protect your headset microphone and improve transmission clarity. Weight .51lbs
I bought a couple of the cheaper ones and a couple of these. The ASA ones are denser and seem to be of better quality. Plus, it comes with an o-ring, so it saves the effort of trying to find one the right size.
I just got it so cant honestly say it is the best and give a 5 star but so far it has been great. Low price, comes with an O-ring, and fit over the microphone of a 20 year old headset.
fitted OK but wonder if they had a different grade to reduce cabin noise.