WUSL, better known to the listeners as "POWER 99FM", is a mainstream urban radio station, owned by iHeartMedia, Inc. and licensed to Philadelphia. WUSL broadcasts from a class B signal with an effective radiated power (ERP) of 27,000 watts (27 kilowatts (kW)) on the 98.9 megahertz (MHz) frequency from a tower located in the Roxborough section of Philadelphia, and its studios are located in Bala Cynwyd.