These headphones are a quality piece. The build quality for a product at this cost astounds me. These are very robust and appear that they will last a long time. The sound quality is very good. Noise cancellation is very effective. The only reason I did not give this a 5 star rating is because I like to listen to my music at deafening volumes and these headphones just don't get loud enough for my personal preference. I will say that at the "maximum volume" the sound quality doesn't seem to get distorted like others I have used in the past so that is a plus. Comfortable to wear for hours at a time. Better battery life is impressive. I am happy with my purchase. I have not used these to make or receive phone calls so I can not comment on that aspect. Not the reason I purchased these. Wasn't even a feature I considered when making a purchase decision.