Cobra XRS 9540 High Performance12 Band Radar/Laser Detector 12-band high-performance radar/laser detector with ultra-bright text display and voice alert Detection and separate alerts for X, K, Ka, and Ku radar bands, laser signals, Safety Alert signals, Strobe Alert signals, VG-2 signals, and Spectre 1 signals Superheterodyne Technology provides extra detection range and the best possible advance warning to even the fastest radar guns Safety Alert function warns drivers of emergency vehicles and roadwork hazards One-year warranty