I give first because the people who were attacking the look a little "cheap" product. The plastic used does not give a very pleasing appearance .. The case is light enough (no one will believe it's the bomb hi-tech this stuff) But! However, the product does exactly what is asked, the connection is fixéee, like for buttons. The transition from one signal to another occurs without disruption, even if a signal is being transmitted. 4 stars anyway because frankly .. To design a device that remains (in my case) built into a TV stand all day, whatever!