Universal Compatibility:This 12V 128dB waterproof horn set includes 2 horns (1 high-tone + 1 low-tone). Designed for universal use on 12V-powered vehicles including cars, trucks, boats, and motorcycles. Install one for basic use or both for richer, more powerful sound. Dual Tone: With low and high tone settings, this horn produces a powerful and attention-grabbing sound to alert others. Waterproof Construction: Built with a waterproof exterior, this horn can withstand harsh weather conditions and outdoor environments. Easy Installation: This horn kit includes all necessary components for a straightforward installation process. Durable Build: Crafted with high-quality materials, this horn ensures long-lasting performance and reliability. Upgrade your vehicle's horn with the EKIONBY 12V Universal Super Loud Electric Waterproof Horn Kit. This 2-piece set includes 1 high-tone tweeter and 1 low-tone woofer, delivering a powerful dual-tone sound that ensures you're heard from a distance. Crafted from durable, waterproof materials, it's compatible with all 12V vehicles—including cars, motorcycles, trucks, and boats. Use one horn for essential alerts or install both for enhanced auditory impact. When used together, the dual-tone design delivers even clearer, farther-reaching sound. As a universal replacement kit, it seamlessly integrates with your vehicle's existing horn system. Say goodbye to unnoticed horns—enjoy improved driving safety and the confidence of a high-performance, weather-resistant horn.