Portable MP3 player question

Hey folks im looking to buy an MP3 player and have found a good one, but thing is if i buy it in the UK it costs £200 where as if i buy from US its £141 and even with shipping costs it will be cheaper.

But i wonder does anyone know if it will be affected in terms of power supply etc not being the same in the UK ? as id dont want to order something and find it wont work…

any help appreciated.