My old Bose IE2's broke after a long run. I'd had them for more than 4 years and I thought they were great. So when it came time to replace them, I was going to get the bose noise canceling version. But when I saw the price I figured I would try some less expensive noise cancelling / wireless to see if I liked those functions - I figured that if I liked wireless and NC, I would feel ok with spending all that money! I did what I always do, and searched and searched. Read the reviews, and really took a bit of a gamble. I really like the silicone ear things, so that pointed me towards these NC50's, and the reviews were all pretty good:So, these sound better than the IE2's ever did. I am really pleased that I went for the Linner's. I prefer the NC50's. The sound is clearer. It has better mid and high frequencies. The bass is warm and rich without being overpowering. They fit perfectly in my ear. They have 3 sizes of ear silicone, so I imagine most people will find a nice fit.I have a couple of blue tooth speakers - And they can be a pain to pair, but for whatever reason the linner headphones pair instantly every time. You have to press the button to turn on the noise cancelling. I've forgotten a couple of times and they definitely sound better when you use that function.They have a battery - Which means you have to think about making sure they are charged up. That is a bit of a learning curve, but applicable to all wireless earphones. I got caught out on a long flight. And you cant pair wireless earphones with the planes info system, so if you want to watch the TV, you need to use wired speakers. Again - Applicable to all wireless speakers, but something I hadnt taken into account.These are such great value. The price is right - You get much more than your moneys worth. The sound is amazing. I am comparing to IE2's, and B&O's (lost on a plane - Sucks but I never thought they were any good).Hard to fault. Good price, amazing sound, comfortable fit, good battery life. I am very happy with this purchase!