Beltronics RX55Pro Superior X/K/Ka Radar Detector RX55Pro RX55 Pro New "POP Alert" detection scheme provides the fastest response to this latest Ka speed measurement device New AutoScan mode virtually eliminates false alarms New Easy-to-Use Programming allows you to customize up to 7 options for your specific driving style 3 City Modes optimize selectivity Shadow Technology provides complete immunity to the VG-2 detector-detector Total Tracking Laser ensures superior off-axis coverage and widest field-of-view Compatible with LaserPro 905 Manufacturer's one year limited warranty Driver Selectable Features: Power-on indication Power-on sequence Voice alerts on or off AutoMute on or off City mode sensitivity Safety Warning System (SWS) on or off VG-2 detection on or off Operating Bands: X-band 10.525 GHz 25 MHz K-band 24.150 GHz 100 MHz Ka-band 34.700 GHz 1300 MHz Laser 904nm, 33 MHz bandwidth Radar Receiver / Detector Type: Superheterodyne, GaAs FET VCO Scanning Frequency Discriminator Digital Signal Processing (DSP) Laser Detection: Quantum Limited Video Receiver Multiple Laser Diodes Display Type: 280 LED Matrix/Text 3-Level dimming, plus Dark Mode Power Requirement: 12VDC, Negative Ground Optional SmartPlug Compatible Sensitivity Control: AutoScan, Highway and City Dimensions (H x W x L): 1.1 x 2.75 x 4.75