The Hammacher Schlemmer Institute conducted an extensive review of radar detector tests by industry experts, and this model proved to be The Best. A laboratory that specializes in testing radar detectors determined that The Best model identified all K- and Ka-bands (the most common radar used by law enforcement) at its maximum meter reading from 1/2-mile away. The Best model also detects X-bands and LIDAR, identifying the radar from up to 7,920' away. A former Lieutenant Sheriff lauded the unit as "the best on the market" for its accurate radar identification and filtering of false positives. The Best model uses GPS to ignore radar from security alarms or garage door openers, eliminating false alarms. A police radar instructor stated that The Best model is "the best defense we've tested against red light and speed cameras," providing notification up to 250' before the camera location. The Best Radar Detector automatically adjusts its sensitivity based on the car's speed and its LED screen displays 60 warnings like "work zone ahead" or "reduced speed ahead." Includes a DC power adapter and windshield mount. 5 1/3" L x 3" W x 1 1/2" H. (2 1/2 oz.)