Color:BLACK GRAY Media:Electronics Autographed:No Memorabilia:No Number Of Items:1 Shipping Weight (lbs):0.5 Dimensions (in):3 x 6.3 x 10.3 Legal Disclaimer:Warranty does not cover misuse of product. Warranty:3 months warranty
MPN:23135 Model:HP/NC II UPC:252151904212 EAN:0025215190421 ASIN:B00000J1EJ
Nice execution for the moneyNovember 20, 2001 36 out of 38 found this review helpful
We bought these to soothe our nerves during flying. I found that they function very well as headphones. The noise cancellation circuitry adds a very low level white noise that can only be heard in quiet passages in quiet environments, but the circuit can be switched off and the headphones function as any unpowered phones do. Sound reproduction is good, the noise cancellation works mainly in the lower octaves (rumble and roaring noises) which is where you need the help when traveling. Higher frequency noises like voices are only slightly attenuated. This may be a design strategy which makes sense, but is also likely much easier (cheaper) to execute than full-bandwidth attenuation. Very helpful for our intended purpose.
Depends on the type of noiseNovember 8, 2001 102 out of 104 found this review helpful
These headphones were disappointing. I bought them to use in a computer room that has a refrigerator size disk drive and an even bigger AC unit. These headphones do a good job of reducing the low-frequency noise but most of the high frequency stuff comes right through. As a result the noise reduction for me was about 20 - 30% of the total. I also tried them with a leaf blower and had the same results. They do seem to work well at taking out low rumbling humming noises like you would find in air travel but not for anything that has high pitched fan noise like AC units or vacuums.
Surprisingly Effective NR; not bad headphones, eitherAugust 14, 2001 15 out of 15 found this review helpful
The noise reduction works as advertized. Low frequency sounds are _greatly_ reduced. Higher frequencies -- human voices, in particular -- are less damped. But if you spend time around machines (airplanes, air conditioners, etc.) they make your life a lot more peaceful. As headphones (for example, for a stereo) they are OK but not great.
Very good noise cancelling headphone for the money!June 25, 2001 13 out of 13 found this review helpful
The fit is good, even though the ears are not covered completely, and they are comfortable. The sound quality is OK and they filter out external low frequency sounds effectively. I've tried other brands sell for 3 times as much, and this set works just as well if not better. For the money, these headphones can't be beat.
waste of time and moneyMay 31, 2001 11 out of 24 found this review helpful
This is very uncomfortable unit. But the most annoing this is that I could not use headphones on a 15 hour flight on Boing 747 bussiness class. Units does not have proper connector. Headphones are heavy, pinched my ears and perfomed poor. Even standrd headphones provided by United were better. I just hope that I will get my money back fast.
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