Microphones; Audio mixers; Audio speakers; Equalisers being audio apparatus; Loudspeakers with built in amplifiers; Loudspeakers, headphones, microphones and CD players; Portable wrist-mounted digital electronic device for audio recording and audio playback; Power amplifiers; Signal processors; Sound cards; Sound recording apparatus; Speaker microphones; Stands adapted for mobile phones; Wireless receivers and transmitters for portable media players; Wireless transmitters and receivers