Burglar alarms; Camcorders; Earphones and headphones; Electric door bells; Electric and electronic effects units for musical instruments; Fire alarms; Guitar amplifiers; Loudspeaker cabinets; Loudspeaker systems; Microphones; Music headphones; Neon signs; Portable media players; Portable video cameras with built-in videocassette recorders; Rotating lights; Smoke detectors; Theft alarms; TV cameras; Video cameras; Video recorders