It serves the northern sections of the Miami metropolitan area, including West Palm Beach and Fort Lauderdale.

On March 17, 1957, the station signed on as WQXT-FM, the FM counterpart to WQXT (now WPBR), under the ownership of the Flame Radio & TV Corporation.

[6] They simulcast a full service middle of the road format of adult popular music and news, with national shows from the ABC Radio Network.

In 1971, the simulcast with WQXT ended, as WWOS switched to Progressive Rock using the call letters WMUM for "The Mother."

On September 27, 2018, Alpha Media agreed to sell its cluster in West Palm Beach to Hubbard Radio.