Rating: 
Summary: think twice
Review: Think more than twice before you decide to buy this product, unless the shape of your head is square.
I wonder if the design engineer of this product knew the word "ergonoimcs". Your head and ears will start hurting right after you use the headphone.
Don't buy this product. Buy anything else(Brookstone or Koss).
I really with I had seen this kind of advice before I made a fatal mistake.
Rating: 
Summary: Aiwa HPCN5 Noise Canceling Headphone
Review: This headphone actually do what it says. It is lightweight, and has adapters to use on airplanes. One of the things I hate about traveling on the planes is the uncomfortable plastic tubes they ask people to use to listen to music. After a while they really hurt. This headphone is not only comfortable, but it actually does make things quieter. Aiwa has definitely done some market research to make this a great product. Best of all, it folds up into a compact size and is stored in its one bag!
Rating: 
Summary: great buy for the price
Review: This is definitely a good buy - I think "noise canceling" = "amplified" more than anything else. The little monitor microphones work, but the headphones were just as good with the power "off" than with the power "on" (other than being a little quieter w/o the amplification). If you want the best, go with the Bose QuietComfort headphones (free trial for 30 days, too)...
Rating:
Summary: Bad out of box
Review: This set of headphones were bad right out of the box..I have co-worker/friends that have purchased the same product ( refurbished by the same company ) and most have failed to work properly within 2 to 5 days..problems like ( canceling feature doesn't work at all..Humming noise..or bad sound quality ) I wouldn't waste my time or money sending product back to this company..as they can't fix them right the first time..(...)..
Rating: 
Summary: A pain in the head
Review: Wearing noise cancelling headphones on long flights leaves me more rested, even if I'm not listening to music. It's surprising how nice an effect this is, and the Aiwa CN5 performs will in this regard. I do have to adjust where the earpiece sits on my ear for the noise cancelling to kick in. Not a big deal, though it requires some attention. I suspect this is a side effect of the CN5 being an "on the ear" style of headphone. The audio fidelity is quite adequate for my ear.What is not adequate is the comfort. Unlike some reveiwers, my head doesn't hit the battery if I adjust the extensions properly, but the the headband has no padding and is angled in such a way that there is no way to get it to sit flat on my head. Instead, the sharp edge of the plastic band digs into the top of my head. I can't wear them very long without having to get something out of my bag to put under the band on my head, which gives me a lovely visual aspect and entertains my neighbors. Not recommended. I'm about to try another brand.
Rating:
Summary: Open air Means OPEN AIR!!! see also NCT "noise busters"....
Review: WHY PAY MORE FOR A NAME?!?! these are great headphones for the price. I've been shopping for some NC headphones for my occasional trip, and finally decided on these. Price was the most important issue, practicallity next, and style obviously came last. When I walked in the apartment wearing these babies my roommate kept looking at me saying "NOT THE EARS... DON'T TOUCH THE EARS!!". and granted, they are ugly, (silver and teal to be exact) and the only way they could have made them look worse would have been if you spray painted the word "[goofy]" across the square head band. But to be really honest with you, I could care less about how they look because... THEY WORK.. and well worth the price...I'd definitely look into the latter of the three. I've tried them all and finally decided on these. REASONS WHY: the battery pack is on headphones not on a separate "BOX" with extra cords and odd sized batteries. Just one cord and one AA battery. I went to [retail store], bought a ...battery charger w/4 AA batteries. I use two in my cd player ONE in my headphone, and have an extra set on standby. OPEN AIR: my ears tend to sweat alot in closed headphones like the bose, and I hate the feel of the pseudo leather they use on the pads. Also if you're a guy with longer hair, you don't have to worry about your hair getting pressed down from the shear pressure of the earpads. that sexy sqware head band!! They fold flatter, than most which makes packing a breeze. plus it fits over my cowboy hat alot better than any standard headphone. BEWARE there is NO padding on the head band, and for an optimum fit they may need to be tilted back a bit which leaves the edge of the band gouging into your head. BOY do I have a big head! they feel a bit tight, but i'm sure with some wear they'll feel alot better. That or they'll break. The sound: They sound fine. a bit low on the high side, but excellent bass. The midranges are fine too... and unless you're a REAL audophile, you're really not going to notice a difference. THEY BOTH hiss when the NC is active. The only NC headset i've tried without hissing are the noise busters.
If i had it to do over. I would have gone to the sharper image, but you know Best Buy and it Krazy "no receipt, no return policy" ohh and another piece of advice, "keep all your receipts"
Rating:
Summary: Ouch!
Review: Yes they cancel noise and sound ok, but the hard plastic that rests on top of your head hurts - a lot! Major design flaw, and makes using these otherwise decent headphones unacceptable.
Rating: 
Summary: Good price, works well, uncomfortable
Review: Yes, it is priced right. Yes, it does work. But, it is uncomfortable. Even [for the money paid for the] headset, it can still be comfortable, i.e. Jensen JNC50.
Rating:
Summary: It hurts...it works...
Review: Yes, these hurt my ears, too, but if you're into that sort of thing, a whole new realm of discomfort can be experienced while wearing these headphones with sunglasses. My brother has cauliflower ears, I should have him try these on and write a review. Now the good news: they work...they work well. I got them to listen to my audiobooks while doing work around the house. It typically takes me three hours to mow my yard with the obnoxiously loud 20 hp lawn tractor. That's a LONG time to be with my dark thoughts, so I needed a distraction. Of course, I tried to make myself deaf by using the earbuds and the over-the-ear models, but the Briggs & Stratton still prevented me from listening to Robert Ludlum. Enter Aiwa. They're cheap, so I got 'em. As soon as I flipped the switch, the roar of the tractor's engine diminished. When I started the cassette player, I could clearly hear the narrator describing a character being eviscerated...just in time for the good part! Try this. I've always thought that kitchen stove hoods running on HIGH sounded like the inside of an airliner. Fire up the hood and wear the headphones with them OFF. Then flip them ON. What a difference, huh? Perhaps Aiwa will read these reviews and come up with a better design that will afford comfort to its wearers. If you're Ross Perot or Andy Griffith, don't get these headphones.
Rating:
Summary: Yuck
Review: Yuck! Way too uncomfortable - I couldn't last 30 minutes wearing this, let alone a 12 hour flight to Narita.
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