Adjustable sensitivity with 5 warning levels, from 1 to 5, where 5 is the highest. Press and hold the horn symbol for 4 seconds to activate; it will beep once, twice, three times, and so on in succession. Produces a 110dB loud sound for effective anti-theft protection. Waterproof PC material shell with IP55 rating, suitable for outdoor use. Easy operation with two-wire installation. Includes remote control for convenient arming and disarming of the alarm, as well as one-key vehicle locating. Remote control range up to 20 meters. Wire connections: red wire for positive, black wire for negative, blue wire for signal (optional connection). Equipped with a three-dimensional displacement sensor to detect theft attempts, enabling accurate detection and reduced false alarms. Universal 12V anti-theft security alarm system designed for motorcycles, bicycles, scooters, and similar vehicles. Features a high-decibel alarm speaker with a powerful 110dB piezo siren to deter intruders and provide timely alerts.