Exchange was by Amazon, Wei usual, no problem. The new one is better, but he is ticking partly loudly audible. Depending on where the second hand is currently located. He is my husband to the bed, it does not bother him. I'm sensitive and if he would stand beside me at the table, he would be sent back.
What makes Braun quality control? That can not be it, these are 2 alarm here is not ok. For almost 40 Euro must not happen that.