I recieved this product in Denmark 3 days after placing the order and decided to pay DHL the extra 165 DKK (around $30) to have it delivered. I am very pleased with the sound quality and form of this product. It has some pretty deep base and clear tones for a bluetooth head set and I look forward to take those rather long bicycle rides with music in my ears.
So for the record: THIS PRODUCT IS PERFECTLY SUPPORTED BY SAMSUNG GALAXY S4 MINI.
The delivery was amazingly fast, it's weird to think that this has been shipped from China to Denmark in a mere 2,5 days.
I haven't tried using it for prolonged periods of time, so I can't say if battery life is as promised, but the quality of the sound is pretty good to my untrained ears and I can atleast tell that the quality is way better than your normal bluetooth head set and I think it's richer than my wired cheap copy of beats plug-ins.