About this item Powerful Air Horn: This high-quality air horn delivers a piercing blast to alert others in emergency situations or attract attention. Wide Compatibility: Compatible with 12V system, can be used for SUV, motorcycle, yacht, boat, off-road vehicle, bus, train, etc. Stable Performance: 600dB sound level with stable performance and higher working efficiency. Easy to Install: Equipped with a universal bracket, which makes installation easier, more time-saving and brings you more convenience. High Quality Material: Made of chrome-plated zinc-aluminum alloy material, hard, durable wear-resistant, corrosion-resistant, also has a long service life.