Emergency warnings, everywhere, all the time. This radio gives you the life saving advantage of an automatic warning before severe weather and other emergency conditions arise. Designed for use before, during, and after emergencies, this radio meets the Public Alert (CEA 2009A) standard. Accurate digital tuning. Receives 7 NOAA (NWR) weather band channels. This radio uses accurate digital crystal controlled PLL (phase locked loop) tuning for all (7) NWR channels. Digital alert decoding. The S.A.M.E. (specific area message encoding) technology allows the radio to decode the digital broadcast information for all types of emergency, both civil (radiological, oil spills, and chemical releases) natural (weather, earthquakes, and volcano activities). New alerting receiver. Constantly monitors 1 of the 7 NOAA weather radio channels (162.400 to 162.550 MHz) for any emergency notifications, i.e. civil emergency, Amber alert. Alert siren. A 2 tone alert siren which sounds when an emergency alert is received. Location programming. Up to 20 locations can be programmed into the radio, ensuring that users are only alerted to Emergency Alerts which pertain to their specific area. Automatic test sentry. The NWR transmitters are tested weekly. Battery back up ensures operation during power failure. 12V AC DC 200ma (120V: 12V AC power adapter included). ''AA'' alkaline or Ni Cad batteries for power backup not included. 17'' telescopic rod antenna. Dimensions: 7.75'' L. x 4.75'' W. x 2.5'' D. White.