Binoculars; Walkie-talkies; Audio speaker enclosures; Baby monitors; Bar code printers; Digital cameras; Hunting binoculars; Infrared cameras; Infrared detectors; Kilometer recorders for vehicles; Mini beam projectors; Radio-frequency transmitters; Safety sensors, namely, carbon monoxide detectors, smoke detectors, and combination carbon monoxide and smoke detectors; Self-acting focussing projectors; Television cameras; Thermal printers; Video projectors