Whistler Xtr-440: Understanding Key Features, Comparisons, Manuals, And Reputable Buying Options
Whistler XTR-440 Information the information about the Whistler XTR-440 radar detector: Introduction The Whistler XTR-440 is a full-featured radar detector that is also battery powered. This means you have all of the great Whistler features in a cordless model. This makes the XTR-440 great for use on motorcycles, or for those that need an easy to transport detector.