Panasonic RP-HC70K Consumer Headphones

Pros: Relatively inexpensive, folding design
Cons: Noise canceling does not really work well; very poor fit

FEATURES:

These headphones were advertised as noise canceling, supposedly great for use when on airplanes, using the lawnmower, etc. The noise canceling feature is via a battery powered device that is attached to the headphone cord. There is...

Pros: Noise canceling is marginally effective, unit folds up.
Cons: Poor fit, poor sound quality, external circuit box is a pain.

I own 12 sets of headphones for portable audio, including several other sets of nose-canceling headphones. These are adequate, but just barely. It is fairly difficult to get these to seat properly on your ears. If they don't seat properly, you have ...

Pros: Small, lightweight, foldable
Cons: Cheap, don't work well, noise canceling box sucks

These were a gift given to me used from my dad, he knew I didn't need high quality headphones but that I was traveling enough noise canceling would be nice, and of course he was getting better. When first getting them I was pretty skeptical of how well ...

Pros: Good Noise Canceling DSP for low frequencies. Long battery life.
Cons: Could have better low frequency range.

I travel frequently and have tried a few different noise canceling headphones. Specifically, these blow away the Koss QZ50 & Sony MDR-NC5. They are not Sennheiser, but certainly well worth $30.