An alert override feature automatically switches from radio to emergency alert mode. In addition to important weather announcements, the All Hazards Alert enables you to receive 60 other emergency announcements such as Child Abduction Emergency (Amber Alert), Civil Emergency Messages, Fire Warning, Landslide Warning and Biological Hazard Warning. The WR11 is powered by an AC adapter and is reliable and easy to use. Get the important information you need even in the event of a power outage. WR11 Features: Weather Radio, Receives NOAA Weather Broadcasts, AM/FM Clock Radio w/ Snooze, Auto Override Switches From Radio To Alerts, Over 60 Emergency Alerts, Battery Back Up During Power Outage"