If the small black boxes (edge length about 8x8cm) But once free, the rest is quick and easy: Supplied sufficiently long Strobkabel into the adapter and the socket, supplied audio pin cable also in the adapter and then into an available line press in the stereo system, "Connect" button on the top of the box and look for the music adapter in the Bluetooth settings of another device and confirm - made with me with an iPad 2, an iPhone 4 and a 4S (each with iOS 5.1) - that is the establishment and immediately receives the box via Bluetooth the audio signals of the player, and outputs it through the stereo system.
Good: In the iOS devices you can "click" between the two sources of expenditure - iOS device itself, or at least Stereoanalge via music adapter - back and forth. If you connect a new device with the box via Bluetooth, of course, is the first connection is lost - but must also be so that the box does not come in a reproduction conflict.
The delay in the reproduction is in the millisecond range and makes music with nothing out.
The only slight disappointment in the box: it lacks a power switch. Thus one has a permanent electricity consumers in operation, but I meet with a disconnectable power strip ... and rather take into account that I have to pair the box and the player before each use within two or three seconds always again.
I use the adapter to stream my comfortable on an external NAS music stored via iPad 2 Bluetooth and thanks to my stereo output - and it works perfectly and in very good quality. For me, in this configuration, so an absolute buy recommendation!
