@kamran!!!
yeah something like that. you cant live without these things in US
@angel
Radar Detector detects if there is a Speed gun or camera and notifies you by a voice prompt.
Scanner has several options like Fire, Air, Police, Weather and CB. this thing lets you hear the conversation of your local police, fire and other radios so you know when they are about to come for you. you might have seen the scanner in the movie Fast and The furious 1 where they perform street races and all of a sudden one of the guy yells "Oh Sh*t we got cops cops cops lets go...."