Summary: I was looking for great sounding noise cancelling headphones since I'm not happy with my Bose QC15 sound quality and sold it on ebay, at the same time I keep researching for my next NC headphones but I didn't like what I read online reviews on any of noise cancelling headphones. I thought, since I like my D5000 so much and I should try Denon NC headphones too., So I bought AH-NC800 refurbished from Amazon for $200.
Summary: I selected these headphones over Bose QC-15 because they can be used even when the battery is dead. The active noise canceling seems to work fine though I didn't test the headphones on the plane yet. The headphones are very light and extremely comfortable. I was most impressed by portability of these headphones. They fold easily and fit neatly into a compact semi-hard case.
Pros: Comfortable, Compact, Great Sound, Lightweight, Stylish
Summary: After travelling to the US with a pair of Senheisser PXC 250 II and being very pleased with their performance, I was somewhat disinterested in listening to other noise cancelling headphones. However in NYC,I auditoned a pair of these at J&R and I was knocked out by them - so I travelled home with two pairs of headphones!
Pros: Comfortable, Good Bass, Good Value, Great Sound, Stylish