1.Customizable Sound Effects: With 12 different sound options, the Car Horn Sound Effect Controller allows you to personalize your car horn's sound. 2.Adjustable Volume Levels: Each sound effect comes with its own volume level, giving you the flexibility to choose the perfect volume for any situation. 3.High-Quality: Crafted from high-quality plastic material, this controller is built to withstand the rigors of daily use. Its sturdy construction ensures long-lasting durability. 4.Stylish Metal Knob Design: The metal knob design not only adds a touching of sophistication to your car's interior but also provides a comfortable grip for easy control. 5.Easy Installation and Compatibility: It is designed for hassle-free installation and can be easily connected to car horns, supports 12-24V wide voltage. Voltage: 12-24V Color: As Shown Material: plastic Package Contents: 1 x Controller 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.