Now after several months testing the smartphone what it was intended, I can say; man needs the part not really. yes it is a little louder than without the Sound Blaster, but that in his pocket or outside is tangling Real nerfig. About improving the sound I can not tell the difference even if I use quality headband headphones. positive is actually the battery life. I can say nothing, because I have already built a very good sound card and use looks like the whole PC.
