Radio set is a term that describes a device for listening to broadcasted radio frequencies. It is often used interchangeably with terms like radio receiver, transistor radio, or wireless radio. The evolution of radio technology has produced different types of radio sets such as pocket radios, car radios, and boom boxes. In addition, modern technology has brought about digital radio sets which have replaced the traditional analog radio sets. Other synonymous terms for radio sets include portable radios, tube radios, shortwave radios, and ham radios. Whatever the term used to describe it, a radio set remains a device that many people rely on for news, music, and entertainment.