The only downside to this radar detector is to set the compass. You will need a retail store parking lot (empty) to drive in circles (3 times) to set the compass. After that the radar detector is such a beauty. It will detect all the bands specified in the description, I know it for a fact. It will detect a speed radars about a mile and a half away in any direction. In open highway it will go as far as 2 1/2 miles. This product has definitly saved me from several tickets.