Audio mixers; sound mixers; wireless controllers to monitor and control functions of electronic devices other than controllers for gaming apparatus; audio interfaces; turntables, compact players, and MP3 players for disc jockey booths; integrated DJ system audio equipment composed of players for disc jockeys, sound mixers, controllers, and audio interfaces; audio digital players for disc jockeys integrated with audio mixers; electronic controllers for disc jockeys to play music by sending control signals accessible via application to application software for personal computers; telecommunication transmitter machines and apparatus; downloadable computer software for creating and editing music and sounds; downloadable computer software for controlling operations of audio and video devices; electronic machines and apparatus, namely, DJ-players, DJ-controllers, DJ-mediaplayers, DJ-mixers, all-in-one-DJ-systems, remote controllers, electronic machines for DJ-players, and parts and accessories thereof; downloadable music files received and stored using the Internet; downloadable application programs for disc jockeys for selecting music, mixing music, setting sound effect, sampling music, and scratching music; downloadable computer programs for disc jockeys for selecting music, mixing music, setting sound effect, sampling music, and scratching music; USB flash drive