New Kaito Voyager Pro KA600 Digital Solar Dynamo Crank Wind Up AM FM LW SW & NOAA Weather Emergency Radio TVs Men Brinley 4 Light 32 1 4" Wide Color:Black Brinley 4 Light 32 1 4" Wide Bathroom Vanity Light Minimum Height: 25 Radio Data System or RDS is a communications protocol standard for embedding amounts of digital information in conventional FM radio broadcasts Connected to the Emergency Alert System (EAS) through NWR (National Weather Radio) network provided by NOAA (National Oceanic and Atmospheric Association) this feature will automatically activate the radio to inform you of any hazardous weather conditions or warnings including natural environmental and public safety while the radio is set at the Alert mode