The CR73 features Whistler's FDSR (Field Disturbance Sensor Rejection), the most recent advancement to combat new vehicles equipped with Frequency-Modulated Continuous Wave (FMCW) K band blind spot and collision avoidance devices that clutter nearly all of K band causing a normal radar detector to alert continuously. The CR73 is also the first radar detector of its kind to offer bilingual (English/Spanish) Real Voice Alerts.
