The device itself is working properly with my Nokia Lumia 800. I had previously checked the Bluetooth versions to obtain any nasty surprise. Within a few seconds the phone and speakerphone are synchronized. The voice quality is not outstanding but adequate to good to call. The power supply, however, do not like it in this device. The cord is too short, the plug acting as a whole bought separately and not as a system supplier of a piece. The color white does not help when absolutely discreet hiding the cables. I have the part is not attached to the sun visor but on a holder. Conclusion: art quite well, optics of the device OK, power supply rather moderate. but I would buy it again.
