5 Siren sounds: Hooter/Ambulance/Traffic/Police/Fire - 115 Max SPL DB * Easy to install anywhere with 12V DC Power - see install guide by clicking on amazon picture above * Strictly for Non-Professional Use - This is not a professional product! The mic can be extended we do not sell extension wire. The PA is not very loud on this - PA is the part where you would talk into. * Microphone for PA (MIC IS WEAK - it is not loud) * Valued customer, please understand this product is designed for custom installation. It needs 12V Power delivered to 2 wires. You may have to extend the wire between the speaker and the control module if you are mounting this in your engine bay. Considering the price, this product is a fantastic value, however please don"t expect professional grade equipment at this price. Please check above installation guide before purchase. If you are installing this on your cigar plug in your vehicle, you may need to increase the fuse on your cigar outlet.