With the Cobra ESD-9850, you can hear your alerts announced in plain English by a real human voice with the Voice Alert feature. The ESD-9850 radar detector is also equipped with an alpha numeric display, which allows for far more detailed detection messages and a more complex signal strength indicator. An 8 point digital compass is included with the Cobra ESD-9850 and will display your direction while youre driving. The automatic memory mode will automatically remember your settings each time the unit is powered on.