Amplifiers; Headphones; Microphones; Subwoofers; Audio equalizer apparatus; Audio interfaces; Audio mixers; Audio- and video-receivers; Battery chargers; Cabinets for loudspeakers; Communications headsets for use with communication radios, intercom systems, or other communications network transceivers; Computer software platforms, downloadable, for application development, web hosting, database management; Digital music downloadable from the Internet; Digital sound processors; Downloadable computer application software for mobile phones, namely, software for use in database management, use in electronic storage of data; Downloadable computer application software for mobile phones, portable media players, handheld computers, namely, software for use in database management, use in electronic storage of data; Downloadable computer programs for editing images, sound, and video; Downloadable computer programs for processing digital music files; Downloadable computer software for creating and editing music and sounds; Downloadable computer software for use as a spreadsheet, word processin; Downloadable music files; Electric and electronic effects units for musical instruments; Electronic sheet music, downloadable; Guitar amplifiers; Guitar effects processors; Horns for loudspeakers; Recorded computer programs for use in database management, use as a spread sheet, word processing; Recorded computer software for use in database management, use as a spreadsheet, word processing; Sound transmitting apparatus; Wah-wah pedals; Wireless headphones; Wireless speakers; Wires, electric