That said, the voice is clear, comfortable volume, could do better for the rapid announcement, 100m earlier example, but all in all this device is very useful, I would no longer me pass, I just reproach the lack of a charging indicator when the camera is turned off and connected to the mains. Last precision autonomy is much greater than 5:00 and operation with the cable of 12 volts does not alter the GPS quality. Already used in Belgium and France without worry, so 5 stars.