The Beltronics STiR Plus is an high performance stealth defense system while you're on the road. The STiR's GPS powered technology provides permanent relief from false alarms including automatic door openers, motion sensors and other radar-based sensors. Comes preloaded with thousands of red light and fixed position speed camera locations throughout North America. Exclusive TotalShield Technology makes the STiR Plus completely invisible against any type of radar detector detector (RDD). Not only will it keep you unseen by all current RDDs, it's designed to be completely undetectable by any future threats as well. Digital Signal Processing (DSP) feature continuously analyzes all incoming signals and automatically rejects unwanted false alarms Separate display and controller for multiple installation options Front radar/laser receiver available 12-volt interface module 12-volt amplified speaker Bi-color LED All necessary hardware Three years of downloadable updates Model: Beltronics STiR Plus Display dimensions: 1.950 inches wide x 0.666 inches deep x .0.627 inches high Control dimensions: 1.950 inches wide x 0.425 inches deep x .0.650 inches high Radar/laser receiver dimensions: 3.70 inches wide x 5.40 inches deep x 1.05 inches high GPS dimensions: 1.952 inches wide x 2.699 inches deep x 2.940 inches high Interface dimensions: 2.850 inches wide x 0.810 inches deep x 2.940 inches high Speaker dimensions: 2.250 inches wide x 2.116 inches deep x 2.250 inches high Weight: 6-8 pounds Professional installation recommended Color: Black.