· Muffles out sounds very well, difficulty hearing outside noise or conversation. These are the perfect wired headsets for anyone on a budget looking to spend less than $100. After a few hours of using this size, I reverted to the large silicon tips which I feel isolate noise better when not moving around. 5 or 9, depending on the brand. Sound is good as well. So its pretty much a waste. It fits perfectly for me, not too tight. I can feel a blister could form so hopefully I can break them in and this won?t happen. I will leave it outside for a few days see if the gas smell goes away Theyre brass.