Breathing apparatus for underwater swimming; Cabinets for loudspeakers; Car video recorders; Cell phone battery chargers for use in vehicles; Diving suits; Dog whistles; Ear plugs for divers; Earphones; Electric door bells; Electronic collars to train animals; Face masks for diving; Headphones; Magnifying lenses; Nose clips for divers and swimmers; Portable and handheld digital electronic devices for recording, organizing, transmitting, manipulating, and reviewing text, data, image, and audio...