I just put in service this chain !! nothing complicated c true! I personally attached to the wall with cardboard formats to drill 6 holes (2by elements) nothing complicated! disign is great and responds to what I expected! blue is great! the sound is more than adequate for the needs and perfect! I have not used mp3 encoding but nothing seems complicated to me in view of the instruction manual! in a nutshell, I am pleased with this purchase! and my friends believe it cost me a fortune !! c crazy !!