WR400 DELUXE NOAA WEATHER RADIO The WR400 Deluxe NOAA Weather Radio uses digital S.A.M.E. technology to lock into your county's warning system, giving you instant weather updates from the National Weather Service. The USB output allows you to charge devices directly from the radio. Program up to 25 counties with 80 different emergency alerts. The WR400 is Midland's most advanced emergency weather alert radio.