Our 700 Series Siren can broadcast two tones at the same time with independent speaker outputs. Siren features separate Control Panel so you can mount the siren in the trunk and out of the way. "Park/Kill" function automatically disables the siren once vehicle is in park so you don’t need to waste any time getting out of your vehicle. Proudly Made in the USA and meets SAE J1849 and CA Title 13 requirements.