The switch runs without any problems with me for about two weeks. He does exactly what he should. That would be worth far 5 Stars. However, this is the second switch, which I have. The first was broken within a few days, because a connection is broken into the interior (see comments of German and Markus Wipf "Farfallino"). A second terminal had been battered. That's never happened to me in any of my other devices. Positive was problem-free exchange for a new one. That's why there's a point deduction. However, I do not like that the switch must be turned on separately again when it is connected to the mains. I run the switch with the transmitting station of my headphones into an outlet with power switch. Since I always when I do not need them, always completely take from power supplies, I have to turn on the switch separately every time. That does not bother me pretty (see comment of Di F. Klaffenböck "realist"). Therefore there is still a point deduction.