A radio jockey (RJ) hosts a radio talk show where they select music or discussion topics to interact with audiences by phone, online, or email. RJ's may start with a fixed salary but get paid more with experience. Many become voice-over artists. Training involves courses at media houses as radio is dominated by large corporations unlike smaller Western radio companies. RJ's tend to have dedicated fans and endorse brands on their shows. Equipment includes music playback devices, a mixer, headphones, and optionally a microphone. Qualities needed are enjoying talking to people, having an original style, voice talents, and being able to provide variation without monotony. Famous RJ's include pioneers from the 1920s on