Following (cable variant RCA / RCA) HiFi system was seamless. Connect with the Samrtphone was also without any problems. But the sound was in my case, underground - tinny, noise, much too low (level reduction by about 40-50%). It is connected to another system (this time with the cable variant Cinch / Klinke had the same unsatisfactory effect). However, this may be due to my hi-fi system and not necessarily have to be product-specific. 3 stars because the product will be well packaged and delivered with good instructions. 2 star deduction for the above reasons and because of the lack of power switch (as you can / woman make do by withdrawing the power cord from the device at). My replacement for this product is now the "Logitech cordless Music Adapter for Bluetooth audio devices" that fits.
