Beltronics Pro RX55 provides blistering X, K, Ka sensitivity, the most desirable features and functions, and an entirely new design. Trusted and respected as the preeminent force in radar technology, Beltronics Pro RX55 boasts four selectivity functions to virtually eliminate false alerts, and Digital Voice Technology to identify radar and laser encounters - without taking your eyes off the road. Of course, you can trust BELs proven ability to outperform where it counts most: Sensitivity.