Our Verdict 
Designed for long journeys but they leak sound and, whether the noise-cancelling is on or off, the delivery is poor
For 
Noise-cancelling works well
Against 
Woolly bass and unexciting treble. Lifeless sound when noise-cancelling is turned off
Reviewed on

These comfortable cups won't stay on when exercising. Instead, they're designed for long journeys.

With the noise-cancelling feature turned on outside noise is blocked well, but the delivery suffers from woolly bass and unexciting treble. With it turned off they sound relatively lifeless.

Either way, they leak a lot of sound.