COBRA XRS-9770 PRO High Performance 15 Band Police Cop Radar Laser Detector Xtreme Range Superheterodyne Technology with super fast sweep circuitry, XRS provides extra detection range and the best possible advance warning to even the fastest radar guns Ultra Performance provides advanced warning with extra detection range Detection &amp; Separate Alerts for radar signlas (X,K, Ka and Ku bands, with signal strength indicated), laser signals, safety alert signals, strobe alert signals, VG 2 signals, Spectre I signals LaserEye: Provides 360 degree detection of laser signals Instant On Ready detects radar guns with instant on (very fast) speed monitoring capabilities