Reduces harmful and annoying low frequency sounds in noisy environments
Specialty ear cushion material forms slowly in ear canal providing a custom fit and maximum isolation
Dynamic stereophone element for extended frequency response (10 - 20,000Hz)
Compact design for convenient travel and portability
Ideal for in-flight use
Reduces harmful and annoying low frequency sounds in noisy environments - ideal for in-flight use Unique earbud design directs sound into the ear canal for deep bassSpecialty ear cushion material forms slowly in the ear canal to provide a custom fit and maximum isolationFrequency response: 10-20kHzIncludes lanyard and airplane adapter
This review is from: Koss QZ-77 Active Noise Reduction Ear Plug System
Things I liked about these earplugs: (1) They look cheap. And I don't want to be mugged. (2) Contrary to what other people stated in their reviews, I found the noise cancellation pretty good. I was traveling right beside the plane jets and when I turned the noise cancellation on (without even turning on my ipod), the hiss of the jets would nearly die out. (3) The passive noise reduction is pretty good too. I forgot to buy batteries and was using it without the noise cancellation in the subways and I say it was worth it. (4) the sound quality is decent. But don't expect that any amount of money you expend on earplugs is going to buy you bose-like bass.
Bad things: (1) They go deep into the ear canal. I can't wear them for too long. In the beginning it is not uncomfortable. The rubber in the earplugs is soft enough. But after like three hours I want to take them off.
All in all, I think this is a good option for noise-cancelling earplugs, even without taking price into consideration. But don't expect any earplugs to compare to $500 bose earphones....
This review is from: Koss QZ-77 Active Noise Reduction Ear Plug System
The noise reduction is good, though the sound quality was just okay and I have had to change the battery with only a month use....
This review is from: Koss QZ-77 Active Noise Reduction Ear Plug System
I purchased these earbuds to use when traveling. They are awkward to use, the sound is tinny with no bass whatsoever, and the noise cancellation is nonexistent. When you turn on the noise cancellation it ups the volume a bit and adds a quiet hiss, you can still hear everything going on around you. I am actually astonished at how awful these earbuds are. I was hoping for a 50% reduction in background noise, instead I have a product that is useless in any situation. Traditional earbuds are far superior. I passed the Koss earbuds on to two other people to try with the exact same results, no one wants them even for free.
Bad product, bad design, waste of money.
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