I-Evolution of Sirens kwi-Emergency Vehicles
Ukusuka kwiMvelaphi ukuya kwiTekhnoloji yanamhlanje, uhambo ngeMbali yeeSirens
Imvelaphi kunye ne-Early Evolution
Iisiren zokuqala zezithuthi zikaxakeka zibuyela kwinkulungwane ye-19 xa izandi ze-alam zazisenziwa ngokuyintloko ziintsimbi okanye ngoomatshini…