Does what it is intended; Tip for iPhone users inside!

This little device is small, compact, does not take much power and does not look bad. Ideal to connect the Bluetooth phone to the amplifier, which has neither Bluetooth nor AirPlay; that's my purpose.

Sound quality is OK, just is anloge transfer to the amplifier.

Is a bit annoying that the part is not coupled on its own at your fingertips. The coupling must always be initiated in my case from the iPhone. Ie Logitech by pushing a button "arming", then on the iPhone in the Bluetooth settings, select the device. In my Bluetooth receiver in the car is automatically coupled, that's more comfortable.

Big gripe was at the beginning that I had repeatedly misfires, ie the transmitted music continued every few minutes for even half a second out. This of course is EXTREMELY annoying, and I would have returned the device almost back. However, I have on a Bluetooth speaker of Creative exactly the same problem, both with my iPhone 4S, as well as with the iPhone 5 and iPad3 my girlfriend. The same devices are working in the car with 2 different Bluetooth receivers perfectly and without any interruptions.

After elongated research has turned out that this is probably a problem specific to the Apple devices: Wireless enabled, sparked at regular intervals in the 2.4GHz band (to look for new WLANs), and this is the same frequency range as Bluetooth , Here, the Bluetooth is briefly disturbed, leading to the misfires. Because I do not have a WLAN in the car, the problem does not occur there. So therefore tip for all those who have problems with dropouts: off or try to communicate exclusively with WLANs in the 5GHz band WLAN, then the problem disappears.

Unfortunately, there is no real solution if you want to stream music from the cloud, but probably a mistake of Apple ...

Update 23/09/2013: Since upgrading to iOS7 there are no more interruptions, apparently Apple has now eliminated the problem.