I bought this camera mainly for "LED display of the actual vehicle speed" function ... and here he does it wonderfully !! Randomly, it can also prevent it seems the user of the possible presence of a radar ... but I have not really tested this feature-gadget (I do not trust and I usually off). To not make me "flash" I do not want a "cookie", he was e: I always strictly respect the highway code. I travel 50,000 kilometers a year, still below the speed limit ... "radar" or "no radar!" And in 10 years I never had withdrawal points to my license !! (And for two years, through Wikango GPS, I have no need to ride glued to my dashboard is a precision and unbeatable responsiveness: I never want to be without it, because my car is not equipped with a "speed limiter")