Wireless car anti-theft system: This system does not require a host box or cutting of original car cables. The remote control connects wirelessly to the alarm, ensuring no damage to the vehicle's original circuitry. 5-minute DIY installation: Connect the siren's black and red wires to the negative and positive terminals of the car battery. Press the "Lock" button on the remote control to activate "ARM" mode. The green wire serves as the antenna and does not need to be connected—simply ensure it is positioned upward. Vibration detection: When the built-in sensor detects vibration, the system will issue three warning alerts. If additional vibration is detected within 15 seconds, the alarm will sound. Remote car finding function: Locate your vehicle in a parking lot with a single press of the remote control button. Compatible power supply: Operates within a 9V–15V range, making it suitable for all 12V vehicles. Universally compatible with most car models. Specifications: - Product name: Wireless Car Alarm - Universal 12V vibration sensor car alarm system with remote control and remote car finding capability - Alarm activation: Triggers after three initial alerts and repeated vibration within 15 seconds - Remote functions: Arm, disarm, and remote car finding - Input voltage: 9–15V (compatible with 12V systems) - Vibration sensor sensitivity: 9 adjustable levels, from low to high Notes: - The alarm unit is not waterproof; install in a downward-facing position. - The green wire is the antenna—do not connect it, but ensure it is oriented upward.