I purchased these in September, '15. I had gone in to find a good, sub-$100.00 pair of wired earbuds with passive noise cancelling [tight fitting for some basic level of isolation]. I had absolutely no intention on spending $300.00 on earbuds!!! My brother owns these, however, and rages about how much he uses them and enjoys them. He wears his quite a lot during most days, and after more than a year he has seen no deterioration in the quality. So... I thought I would look at the packaging, at least.
There weren't a lot of choices for in-ear active noise cancelling phones, at the time. I couldn't try these on at the store, but I did try on the Bose QuietComfort 25, over the ear headphones with noise cancelling, and cycled through the demo - I should NOT have done that! I was immediately sold on the technology and sound. I grabbed the QC-20 [for iPhone, with Price-matching!!!] This has all the features I want, except not waterproof. I can use these even when the battery is dead, but they claim 16-hours! It has the inline iPhone controls and mic. Pass-through of some ambient sound - for safety during driving and walking/running in traffic, and for conversing with my wife while listening to music. When I do something stupid... I can turn off the ambient sound for near complete sound isolation [I can't hear her tell me what I did wrong!] During a phone call with my brother and I both using these, I could speak more quietly than I normally do, and he sounded like he was in the room with me. I almost look forward to mowing the lawn - now that I don't have to crank up the music to dangerous levels! ["Almost".... I hate yard work!]
I consider myself a bit of an audiophile - not extreme - but I like a clean, full range. I have never heard so much clean bass from such a small package - and the mids and highs are as good as any earbuds I have worn. My music and my Audible books both sound fantastic. Let these break in a few days, and you'll hear a difference.
After 5 months of moderate use, the "multi-function" button on the inline remote stopped working - as if a spring was broken. I had purchased the Geek Squad extended warranty, but they actually honored the Bose 1 year warranty, replaced the unit, and refunded the extended warranty costs - which I applied to the replacement headphones. You cannot beat the Best Buy Warranty and customer service on such high-cost, delicate items!
I will still say that these are almost perfect for me - except the clumsy battery pack and non-replaceable battery. I love the sound, and the sound cancelling. I am not thrilled with the build quality, but the button was not where I expected failure.
The moral of this story... DO NOT TRY THESE... Unless you are ready to spend the money. Purchase the extended warranty, and be gently with these, but DO buy a pair!
Your mileage may vary - good luck.