Mini Beam project being a projector; movie projector; portable digital projector; projector screen; electrical projector adapter; projection screen; movie projector; mobile device projector; microprojector; digital movie projector; mini beam projector; home theater projector; sound recording and playback devices; sound recording, transmittal, amplification and playback devices; sound and video recording and transmittal playback devices; audio speakers; wireless speakers; loud speaker system; ...