Samsung is still a long way from officially announcing the Galaxy S6 but there is already an abundance of rumors, the latest being that the Galaxy S6 is going to come with a pair of premium earbuds provided by Sennheiser. It is unclear at this point if all variants of this smartphone will come with these premium earbuds, for all we know Samsung could have a completely different variant up its sleeve geared towards audiophiles, but so far there has been no official confirmation from the company.
It is not surprising to see Samsung appease audiophiles. It merits mentioning here that the company used Wolfson DACs on its smartphone quite a while before everybody else started doing so too, there is nothing wrong in Samsung wanting to continue its tradition of offering a premium audio experience.
For the Galaxy S6 it might partner with Sennheiser, according to the folks at Sammobile, and premium earbuds provided by the company will be included within the box itself.