I know this thread is a bit old but I will soon be offering drop shipping of unbranded MP4 Players and hopefully other electrical goods such as unbranded mobiles and USB sticks and hopefully more.
I am based in the UK and items will be shipped to your customer within 3-5 days. Items will be posted via Royal Mail.
I am just waiting to finalise the plans and hopefully will be able to offer the service from next week.
I will also be able to take wholesale orders if people were interested in that.
Feel free to message me if you want more information and as soon as I have it I will pass it on to you.