Looks wertig out, in detail but then several weaknesses: Even without engine discernible echo. Already at low speeds (older Audi A4) disturb the ambient noise transmission so much so that the other person thinks you would be in an industrial hall - the worlds built-FSE with Siemens S4 in the same car. The retractable cable, with which one could place the microphone on an acoustically better place (eg sun visor) is too short and looks quite delicate. + Looks wertig - Samsung Galaxy Nexus with Silicone Case (71mm) does not fit; without cover (68mm) give very little. - Charging current for mobile only 500mA = too little for Navi. - Transmission quality is not convincing in the car. - Pull-out microphone cable too short.
