1) electric siren 2) Police Tones:Horn,Bass Horn,Siren,Yelp,Wall-1,Wall-2, ... -14.5VInput Current≤8A≤11A≤15AOutput Power100W150W200WOutput Inpedence8Ω8Ω4ΩPolice Audio Frequency200-5000Hz200-5000Hz200-5000HzVolume≥118dB≥120dB≥122dBPolice TonesHorn,Bass ...