I'm Irish ever heard of one of them that would not start talking at the drop of a hat. The navas has over 100,000 points of interest( gas Sta.,motels,hotels, restaurants, rest stops, etc.) When you put in your destination , it asks if you want points of intrest & when like in 50 mi. 100 mil. 200 mil. what ever. This is the 3rd. one I've had since 2002 & they just keep getting better & smaller. This one is the smallest I've had & has at least 4 times the features of any of the others & that includes the MB ml350 I just sold.