1. Wireless car anti-theft system: Unlike ordinary car alarms, this system does not have a host box, there is no need to cut the original car cables, and the remote control is wirelessly connected to the alarm. There is no damage to the original car circuit.2.5 Minute DIY Installation: Just connect the siren black and red cables to the - and and of the car battery, then press the "Lock" key on the remote control, it will be "ARM". The green cable is the antenna and does not need to be connected, just make sure it is facing up.3. When the vibration sensor detects vibration, it will remind you 3 times if it detects vibration again within 15 seconds, it will alarm.4. Find your car with remote control: Find your car in the parking lot with just one click.5. The acceptable power supply is 9V-15V, therefore, it can be installed on all 12V cars, truly a universal car alarm for all cars.Specification:Product name: Wireless car alarmUniversal 12V Vibration Sensor Car Alarm System and Remote Control Remote Car Hunting1. When car vibration is detected, the alarm will prompt 3 times if car vibration is detected again within 15 seconds, the alarm will beep.2. The remote control can be used to arm or disarm, and can also be used to find the car remotely.3. Power input: 9-15V, so 12V cars are universal.4. The sensitivity of the alarm vibration sensor is adjustable in 9 levels, from low to high.attention:1. The alarm is not waterproof, please make sure it is facing down.2. The green wire is the antenna, no need to connect it, just make sure the front is facing up.