Taking into account the entire product (support, sound, operation), I regret to advise of space field (not of the devil as a speaker manufacturer). It will mean not on a hard drive on my router stored music. After repeated contact with the support of space field, you could not help me. The last supportive statement was, I should the hard disk but directly to the Raumfeld One connect because you can not use any router. The music on my phone is sometimes found or not. The four buttons on the front are now also mutually different distances. The power button also jammed. From the sound of her is a product which justifies the price, but I expect that the next flights device also works completely and properly. Do not do it unfortunately. An acquaintance of mine used under the same conditions Sonos, which meets all services sold without restrictions. (Although sonically not as nice - personal feeling). An exchange at the time of my resignation no longer possible, but I've waited too long.