SoundOff Signal's 300 Series Siren offers microchip sound controlled tones that are designed to match industry standards yet can be easily modified to create custom tones when needed. Three position slide switch allows you to quickly switch between siren functions. And four integrated auxiliary output switches can be programmed to control other emergency functions such as lightbar operations or shotgun timer. The Park Kill feature automatically disables the siren once vehicle is in park so you don’t need to waste any time getting out of your vehicle. User selectable jumpers can be easily accessed without removing the cover making this one of the easiest sirens to install. Siren ships complete with microphone, steel mounting bracket, harness and 10’ of wire. Meets SAE J1849 certification and is CA Title 13 compliant and is Made in the U.S.A.