Active noise-cancelling earphones?

[dentheman]

Has anyone heard of noise cancelling earphones cancel out helmet wind noise? I am not talking about the noise reducing ones that block noise using the 'ear plug' principle. And I don't mean the ones that have the noise sensing mic located somewher outside the helmet, as this wouldn't detect helmet wind noise. To work properly against wind noise, the 'noise' mic would have to be located inside the helmet near the ears. This would just be to listen to music with a standard jack for mp-3 player, not to communicate with others. And of course it would have to fit inside a helmet.

In simpler terms: active noise cancelling earphones that cancel out the noise made by wind hitting the helmet and can be plugged into a standard mp-3 player. Is there such a thing?