Eyeglasses; Loudspeakers; Sirens; Transformers; Batteries, electric; Clothing for protection against fire; Digital cameras; Downloadable computer programs for using the internet and the worldwide web; Emergency light bars for vehicles; Emergency warning lights; Fire extinguishing apparatus; Life jackets; Light emitting diode (LED) displays; Luminous warning signs; Protective helmets; Reflective safety vests; Remote controls for operating vehicle alarms; Traffic-light apparatus; Vehicle radios; Warning bells