Came across these whilst looking for some new headphones. At first I thought they may not be the real thing as there is no branding on the packaging, but when I ran the barcode from the pictures through the UPC Database it came up with this:
Description Sennheiser CX 300 ear-canal headphones
Owner GLN 6151040000018
Issuing Country United Stateshttp://www.upcdatabase.com/item/615104120945
I know delivery from Dealextreme takes a little longer but for this price they have to be a bargain!