This security system features high-sensitivity vibration sensors and door-switch triggers to detect tampering. The included remote fobs allow you to arm and disarm the vehicle from a distance and find your car in a parking lot using the panic feature. It includes an engine immobilizer function that prevents the car from starting if the alarm is triggered. The 120dB siren is loud enough to deter thieves and alert bystanders. Designed for universal compatibility with most 12V automotive electrical systems.