A radio receiver is an electronic device that captures radio waves and converts them into sound. It works by using an antenna to pick up signals transmitted through the air, which are then processed to extract the audio content. This allows users to listen to various broadcasts, such as music, news, and talk shows. Radio receivers come in many forms, including car radios, portable radios, and smartphone apps. They can tune into different frequencies, enabling access to a wide range of radio stations. The technology behind radio receivers has evolved over time, improving sound quality and reception capabilities.