Update 7/10/2014:
Unfortunately, the device has given up the ghost after 1.5 years. Bluetooth and thus the recognition of the smartphone no longer work.
Why do I screw the rating down:
The attempt to contact the dealer proved impossible. 3 attempts and any response!
Trying on Amazon -> dealers proved to be a flop. Amazon pointed to their own 90 days warranty, which unfortunately can not be held accountable for my case into consideration and DOT. Häää ??
What about the legal warranty of 2 years?
Why can a trader nor Amazon resell without any warning?
One of the reasons why I changed from Ebay to Amazon is now obsolete ... shame.