I was skeptical at first whether the sound from such a flat and a small device is überhaubt audible while driving. I was taught fortunately a better! My interlocutors are always well understood and clear, and vice versa, it has never been complaints. It was often not even noticed that I am in the car überhaubt.
The reason why my requirements "so special" are is that ... I use two mobile phones. An HTC ONE X and a Sony Ericsson C510. Previously, there was always at least one of the two devices connection problems, or until it worked not at all! Here ... everything is wonderful. All calls come through without any problems, and even the switch during an ongoing conversation on the call of the second mobile phones work with a little practice, wonderful!
The battery life is overwhelming !!! The device detects whenever I go, and connects to my phone. If the car is and no connection to any of the mobile phones is available ... the Minikit automatically switches to standby mode. So the battery will last with me ever good for two to three weeks at a time, at täglischer use!
From me just buy it !!!!!