Feature:Detects the latest popular radar gun mode (super fast instant-on mode )Relative speed detection auto-off system virtually eliminates false alarms. The relative speed detection auto-off feature will make your detector undetectable by currently available radar detectorsProvides total immunity to VG-2 radar detectorsThe radar detector settings are electronically remembered indefinitely, even in the event of a power outage Operation: "UP" : Pressing this button will increase the " MEUE" volume: Pressing this button will brighten the display " DN " : Pressing this button will lower the volume and switch between city mode and highway mode, if pressed for more than 5 sFeature Detects the latest popular radar gun mode (super fast instant-on mode Relative speed detection