http://www.bigearsheadphones.com.au/sennheiser-pxc-310-noise-cancelling.html

The PXC 310 are ideal headphones for frequent fliers who want to be enveloped in their music rather than the drone of outside noise.

These closed mini headphones are embedded with NoiseGard™ 2.0 technology which provides up to 90% active noise cancellation. They are also equipped with TalkThrough function which is able to distinguish between background noise and speech, enabling the user to continue his conversations with his fellow travel mate even without removing his headphones.

The PXC 310 headphones are foldable and come with an integrated volume control. An extensive set of accessories - audio cable, inflight adapter, multi-country charger, rechargeable lithium polymer battery and carrying case - completes the package.

http://www.bigearsheadphones.com.au/sennheiser-pxc-310-noise-cancelling.html