WJR (760 AM) is a radio station in Detroit, Michigan, United States. It broadcasts a news/talk format. It is a class A clear channel station whose broadcasts can be heard throughout most of the eastern half of North America at night, making it one of the most powerful radio stations in the United States. Its daytime signal provides at least secondary coverage as far as Dayton, Ohio and Erie, Pennsylvania; under the right conditions it reaches as far west as South Bend, Indiana and as far east as Bangor, Maine. At night, WJR can be heard clearly in Marengo, Iowa, and marginally in Dallas, Texas and the Greater Montreal area of Canada. The station can also be heard clearly at all times within the Detroit-Windsor Tunnel.