Features: Customizable sound effects: With 8 different sound options, the car horn sound effect controller allows you to personalize the sound of your car horn. Adjustable volume level: Each sound effect has its own volume level, giving you the flexibility to choose the perfect volume for any situation. High quality: The controller is made of high-quality ABS material 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 sense of sophistication to your car interior, but also provides a comfortable grip for easy control. Easy installation and compatibility: It is designed for worry-free installation and can be easily connected to the car horn, supporting 12-24V wide voltage. Note: No installation guide is included, we strongly recommend professional installation. Please check to make sure the item is what you need if possible. Tips: Products may be constantly updated, the actual product may have slight differences or color differences, the color and appearance may change, please don't mind. If you have requirements for color or appearance, please consider before placing an order. The words on the product label are random and cannot be specified Specifications: 8 sounds Material: Plastic Color: As shown in the picture Package Contents: 1 x Music Electronic Speaker Controller Only the above package contents, other products are not included. Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowable error is +/- 1-3 cm.