[PA PA SYSTEM]: The car anti-theft horn is integrated into the audio system. You can use this microphone to talk in the car, it works with any 12V vehicle: The car anti-theft speaker can be installed on any vehicle with a 12V DC power supply. You can install it in cars, RVs, boats, trucks, jeeps and more. 【Weatherproof】: It is suitable for fresh or salt water environments and suitable for almost all weather conditions. It is durable enough to withstand harsh weather and the formation of blizzard elements. You can use them anytime, anywhere! Easy to install. Simply connect the RED wire to the 12V supply (includes inline fuse). Connect the black wire to ground (or negative battery terminal). [Price and Value]: This is not a professional product. Compared to market alarms that cost up to 99 euros, this is sufficient for daily use. But the price of the product is good value for money. 【Warning and Service】: This speaker is very loud, please do not use it near schools or public buildings.
