Looking for a portable handheld sized weather alert radio? This Sangean Dt-800 Am/Fm/Noaa Weather Alert Pocket Radio sounds a very loud audible tone when an extreme weather condition is imminent and/or a police emergency or child abduction has occurred or any type of public awareness becomes critical. Even with your radio off or you are listening to another station, the weather alert monitor on this black portable weather radio continues to monitor the Noaa channels should an emergency arise.