Thank you for this crucial information. Now that you have highlighted the importance of this Sisvel patent licensing and as it being required for some products to be imported in Europe, this will save other members from potential trouble.
From my understanding this license needs to be obtained by the manufacturer, and not necessarily the reseller. I have read that Sisvel is the company that developed decoding of mp3 codec, and that they have the patent on the process. I also noticed that when purchasing mp3's from China, the manufacturer usually offers them with or without Sisvel. So that means it will not be based on you not having the license, you will just need to import from the manufacturers who can provide it.
To learn more about the Sisvel license - Link hidden: Login to view
Let's hope to receive more feedback from members about this matter.
Welcome to SaleHoo! :)