[beatsvsath]

will http://www.amazon.com/Audio-Technica-ATH-M50-Professional-Monitor-Headphones/dp/B000ULAP4U/ref=cm_cmu_pg_t work on my iphone 4s? I ask because the amazon UK version is around twice the price!

 

[Swiftay]

Yes. They would be exactly the same.

 

[DrSheep]

That's odd, maybe is the VAT or import duties bumming up the sale price?  BTW, you might want to consider the white version as I do think it will match Apple stuffs better.