Summary: These were life changing for me. I got them for a cross country flight, and they really worked perfectly. They were easy to use, and they were excellent at cancelling out nearly everything, particularly the drone of the jet engine and the screaming baby in back of me. The size of the unit is easy and very manageable, and the earbud covers come in three different sizes, so you can change them to fit.
Summary: Just took these on an oversea trip. They worked great. I was able to sleep with these on. I had trouble keeping it clipped on my shirt so I left it dangling and the headphones stayed and didn't fall out.
Summary: I bought these ear buds to be used when I ride my motorcycles and am very pleased with them. I've used them on a once a week basis for almost two years now and they have performed flawlessly. I wear them under a full face helmet and they fit comfortably and securely. I ride a Honda CBR 600 sport bike and a 1975 2-stroke Yamaha RD350. The Honda has a performance exhaust that is slightly louder than stock and the Yamaha is just plain loud when riding.
Summary: Just buy it! I can bet you will not regret it. Awesome frequency response, very good package and accessories, looks very cool. The only thing I could suggest for improvement is that it could have signal pass-through switch so that it could be used as a generic earbud headphone as well as noise cancelling headphone (this headphone does not work without battery).
An excellent value for the money. Good noise cancellation.
K. Morris, Amazon
10 February 2012
Summary: I purchased this because I had some cross country flights I would be making, and my non-noise canceling ear buds just didn't cut it while trying to watch video or listen to music. I found these Panasonic earbuds to be extremely effective in cutting down the jet engine and wind roar. I have no objective metrics or way to measure the difference, but I would say that the jet roar was reduced by 50% to 60% when the noise cancellation circuitry was turned on.
Fantastic Noise Reduction, Very Good Sound Quality
5 January 2012
Summary: I purchased these headphones for use on the subway and airplanes. The noise reduction is remarkable. Low, rumbling noises are largely negated, while things like voices or train announcements are still clear and easy to hear. The battery pack is smaller than I expected, and is designed to be clipped onto a shirt or tucked in a chest pocket. I've had no issues placing it into the inner chest pocket of many coats I own.
Summary: I've had these for 2+ years. I use them under my helmet while snowmobiling. Earbuds are also comfortable and fit under my helmet. The noise reduction isn't as good as over-the-ear noise cancelling headsets, but they work better than the foam ear plugs and I can listen to my mp3 player too. They also reduce fatigue on a long day snowmobiling. More durable than I thought, these have held up well. Battery lasts all day, probably 2+ days of continuous use.