Features: Customizable Sound Effects: With 8 or 12 different sound options , 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. High-Quality: Crafted from high-quality ABS material, this controller is built to withstand the rigors of daily use. Its sturdy construction ensures long-lasting durability. 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. Easy Installation and Compatibility: It is designed for hassle-free installation and can be easily connected to various car horns, supports 12-24V wide voltage. Note: Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance.The words on the product label are random and cannot be specified Specification: 8 sounds / 12 sounds Material: Plastic colour: As shown Package Contents: 1 x Musical Electronic Horn 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.