Summary: I have the KOSS 3000 headset which has the same earphone receivers as the QZ/99 headphones. Two key features: 1) They sound good. Full range, not particularly heavy on bass, and not particularly bright on treble, which is ideal for communications grade audio. Solid, clear mid range where all the action is.
Summary: I am a dialysis patient where the TV's are mounted on the wall in front of each patient (about 20). Person speakers offer no protection from the audio of those around you. If they have hearing problems, they turn the volume way up. The headsets I had did not drown them out, often making listening to my personal music virtually impossible. These headphone totally (almost) block out outside noises. I have to take them off to clearly understand people standing beside me.
Summary: If you want a GOOD pair of "Meh" quality headphones, this is a great buy. But these are a bit tight on your head so you may want to "try before you buy" if you can. I'm perfectly fine with a tighter fit.
Pros: This is a very durable, very sturdy feeling headphone. The price is a wee bit high but the build quality feels very good so I can't complain. The headband over the head comes with a thicker pad. When you put this on your head, there is no discomfort that comes from the top of your head. It's worth mentioning that the side of your head does some of the work to keep the headphones up.
Cons: It's not SUPER comfortable. It's certainly a tighter fit, but usage after a very long time is still very good. Basically they feel the same throughout the day. More of a preference thing than a con.
Summary: I was willing to lose $20 to return these but was unable to pay for the return label.
Pros: Love the length of the chord, all of my previous headphone chords would get caught under chair wheels.
Cons: It's quite heavy. According to the cost calculator when I tried to return it, they are 4 lbs. As pretty much everyone has mentioned, they're tuned to the mids so don't expect to get the kind of range you need for working with music or sound effects. One reviewer claims that it cancelled out the sound of grinding metal but I can still hear my roommates talking through a closed door with music playing.
Excerpt: I've owned these headphones for over two years. They work excellent with noise rejection. Great for editing and shooting while recording audio. However, they're unbelievably tight and uncomfortable on the ears. I've finally sold my pair and will be purchasing a new, different set.
Excerpt: I got the qz99 to replace a pair of Pelter 3m noise canceling phones that died after a year. I never used the noise canceling aspect of these phones,so when shopping I figured why pay $100 more for NC phones when all I need is a good isolation phones I use these when I mow acreage some times up to 6 hrs at a strech on the tractor it's around 70-75db this is vary wearing and dangerous for my hearing so Good isolation is essential .
Excerpt: good sturdy construction. i use them for video field recording and am very happy with the sound quality and background noise reduction. the multi size jack is helpful. they have some weight if you plan to wear them for hours. but they need to be for the noise reduction. and most any full sized headphone will strain the ears in time.
Pros: Comfortable, Easy To Use, Great Sound Quality