1) 100w electric siren 2) Police Tones: AirHorn,Siren,Yelp,Wall-1,Wall-2,Hilo,Priority1,Priority2 ... video,please contact with me for more details. Specification: Siren Amplifiers (Remote control),Remote control, adopting microcomputer chip ... 14.5VInput Current≤8AOutput Power100WOutput Inpedence8ΩPolice Audio Frequency200-5000HzVolume≥118dBDual Tone—Police TonesAirHorn,Siren,Yelp,Wall-1,Wall-2,Hilo ...