1Prewarning Voice: During detection, GPS will sound to tell you that you are approaching a speed detector to confirm your speed on that stretch of road.2Intelligent Silencing of Interference Signals: The speed sensing automatic silencing system can effectively filter interference signals and automatically mute interference signals, almost eliminating false alarms.3Reverse Detection: Your detector cannot be detected by currently available radar detectors, so you can work stealthily without being detected.4Long Range Omnidirectional Detection: The radar detection device can carry out 360 degree omnidirectional detection, and can detect any stable or moving speed monitor from 200 meters to 800 meters ahead.5Record Keeping: Provides complete immunity to VG2 radar detectors and electronically remembers radar detector Settings indefinitely, even when the power is disconnected.