Has actually quite high in look and feel, but in a high-pitched tone beeps, once you get a cell phone (Samsung S4) no matter which port connects. Only a few seconds easiest dauerfiepen, then. Only in short intervals a short fiepsen like an old modem line The device is used in the social space of the office as a charging station for the colleagues and is now behind the microwave, because you get the Fiepgeräuschen not really what with. If only a few days old. If it is adopted early, again comes an update. Price performance is so far only times ok, if it considers.