Horn:The horn loudness , can issue a warning that can not be ignored, attract more attention, avoid more accidents on the road, help to warn other vehicles and pedestrians, your safety. [Low power, high performance] - The speaker uses 12V DC power supply, low power consumption, through this efficient speaker can improve the vehicle's output sound quality, and produce clear and loud sound. [General Speaker]- is suitable for DC 12V vehicles such as automobiles and trucks. It is suitable for most motorcycles, all-terrain vehicles, karts, off-road vehicles, pocket bicycles and 12V power cars. [Strong, , waterproof] - waterproof performance, long-term maintenance, even in extreme weather can be used smoothly. Horn Controller:Customizable Sound Effects: With a variety of different sound 8 Sound, the Car Horn Sound Effect Controller allows you to personalize your car horn's sound. Adjustable Volume Levels: Each sound effect comes with its own volume level, giving you the flexibility to choose the perfect volume for any situation. : Crafted from plastics, this controller is built to withstand the rigors of daily use. Its sturdy construction ensures long-lasting durability. Easy Installation and Compatibility: It is designed for hassle-free installation and can be easily connected to car horns, supports a working voltage of 12V Fitment: for All Motorcycle Car Truck Marine Boat,all Vehicle is Compatible. Note: Installation guide not included, Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Color: As Shown Material: plastic Package Contents: 1 x Multi-tone Controller 2 x Snail Horn Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.