Audio amplifiers; Audio electronic components, namely, surround sound systems; Audio equalizer apparatus; Audio mixers; Audio processing equipment, namely, limiters and compressors; Electronic sound mixing, processing and synthesizing apparatus; Home theater systems comprising audio amplifiers ; Loudspeakers, headphones, microphones and CD players; Microphone stands; Pocket computers for note-taking; Public address (PA) and sound system accessories, namely, microphone stands, speaker stands, ...