Escort Passport 8500X50 Black Radar Detector, Red Display Blistering All-Band Protection 360-Degree Radar and Laser Detection, Advanced Digital Signal Processing, AutoSensitivity Mode Automatically Reduces False Alarms, EZ-Programming Allows Instant Customization 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, Varactor-Tuned VCO,Scanning Frequency Discriminator,Digital Signal Processing (DSP) Laser Detection : Quantum Limited Video Receiver,Multiple Laser Sensor Diodes Enhanced Radar Protection:Our enhanced "V-Tuned" radar receiver provides extreme long range warning on all radar: conventional and "instant-on" including POP mode, X-band, K-band, and SuperWide Ka-band. Digital Signal Processing (DSP) provides maximum range, with minimum false alarms Exclusive AutoSensitivity Mode:ESCORT's patented AutoSensitivity mode intelligently identifies real threats from other radar sources. Plus, our exclusive Traffic Signal Rejection (TSR) software rejects interstate traffic sensors making it quiet to own and operate High-Performance Laser Protection:PASSPORT's multiple high-performance laser sensors provide maximum laser warning, with superior off-axis protection. For the ultimate in laser protection add the optional ZR4 Laser Shifter Three-Levels of Brightness Control:Choose between Dim, Medium, or Max brightness levels, or fully dark for discreet night driving Three High-Resolution Meter Modes:PASSPORT provides three types of meter displays: Standard Bar Graph, exclusive ExpertMeter, and our unique SpecDisplay Ultra-Bright Matrix Display:PASSPORT's matrix display uses 280 individual ultra-bright LEDs to provide crystal-clear information for alerts, signal strength and text for programming Mute and AutoMute:Patented Mute and AutoMute feature automatically reduces the volume level during an alert to eliminate annoyance from long radar encounters New Advanced EZ-Programming:PASSPORT comes ready to use out of the box. However, you can also instantly customize it for your unique driving preferences, including Power-On indication, Meter type, AutoMute, Brightness level, including full Dark Mode, Audio Tones, and selectable radar and laser bands