Whistler XTR-540 Laser Radar Detector delivers maximum coverage from a full 360 degrees! The XTR ... can eliminate false alarms. The XTR540 Detector is a complete protection radar detector for a variety ... of Whistler XTR 540 Radar Detection:Battery OperatedInternal Battery Charger72 Point Digital CompassBlue ... Technology Package Contents:Whistler Radar/Laser Detector XTR-540Power CordWindshield Mount(3)AA Ni-MH Batteries ... of settings. Specifications for Whistlergroup Radar Detector XTR540:Laser Wavelength:905 ± ... 540 Radar Detector from Whistler has 3 different settings for the city, and a highway mode - so you ... to +158° F)Power Requirements:Operational 12 to 15 volts DC, 250mA nominalVehicle Battery Saver, 30mA...