Chadwick Car Horn Siren Alarm,Universal Car Alarm Security Protection System with 2 Remote Controls,7-Level Sensitivity,12v,Anti-Theft Device,No Thread Trimmin,Non-Destructive InstallationEXCELLENT PERFORMANCE: The car security system has multi level safety arming and high reliability, car security alarm system can effectively prevent your car from being stolen and protect your personal property SCOPE OF APPLICATION: Universal car alarm system with high practicability, which can be used in different types of DC12V cars, and it is a practical accessory for your car. Suitable for electric, pneumatic and retrofitted central locking