The SoundOff Signal nERGY siren features 11 programmable outputs and an LED Arrow Indicator that displays Left Arrow, Right Arrow and Center Out. Park Kill function disables the siren upon placing the vehicle in Park or by closing the door so you don't have to waste any valuable time. The 380 Siren features 3 popular tones with Manual and Horn override button. Meets SAE J1849 and is CA Title 13 requirements. Multi-Function Siren w/ Knob Control, 10-16v - 100w single speaker.