After a short period of use, the device did not turn back. In any case, the unit came with an adapter, which was difficult to get into the outlet. The Customer Service Contact proceeded initially promising, the discussions with the service staff of Amazon were very friendly and knowledgeable. Finally, however, came the sobering statement that asked guarantee application was rejected for alleged timeout. Now this is not traceable in a device that does not even have survived the first year. As a permanent customer of Amazon, I'm very disappointed and will think if I continue purchases here.
