A receiving set, also known as a radio, is an electronic device used to receive radio signals for entertainment or communication purposes. There are many synonyms for receiving set, including radio receiver, tuner, wireless receiver, broadcast receiver, AM/FM radio, shortwave receiver, and transistor radio. Each of these synonyms refers to a similar device that operates by receiving radio waves and converting them into sound waves. Some of these terms may be more specific, such as shortwave receiver, which is designed specifically to receive shortwave radio signals, while others, like transistor radio, refer to a specific type of radio receiver that was popular in the 1960s and 1970s.