WJMK-FM is a radio station that operates at a frequency of 104.3 FM and plays a variety of music. It organizes events and contests, promotes concerts and works with several community-based projects. WJMK-FM is a part of CBS Radio, which is one of the largest market radio operators in the United States with its stations covering news, alternative rock, country, classic rock, oldies and urban formats. A division of CBS Corporation, CBS Radio operates nearly 150 radio stations. In addition, it owns the CBS Radio Network, which provides hourly newscasts to more than 1,500 news and news-talk formatted stations. With its studios in Chicago, WJMK-FM also provides traffic and weather updates.