Loud speaker systems and amplifiers; wireless stereo systems; digital audio players; audio amplifiers; stereo receivers; audio speakers; amplifiers for wireless communications; wireless computer peripherals; wireless hand-held devices; remote controls for stereos; hand-held devices for playing, organising, manipulating and reviewing audio files; hand-held devices for controlling speakers, amplifiers, stereo systems; computer software for use in playing, organising, manipulating, and reviewing audio files; computer software for use in controlling speakers, amplifiers, stereo systems; computer software excluding software for communications; wireless network hardware and audio-visual control hardware and software for transmitting, delivering, receiving, reproducing, processing and streaming digital media