Features: Car Horn Sound Effect Controller have several different sound option that allow you to personalize the sound of your car horn. This regulator is suitable for most 12V 24V car circuit systems, offering convenient compatibility. Enjoy precise sound adjustment for an improved auditory experience. Perfect for car enthusiasts and those who enjoy customizing their vehicles, this regulator adds a unique musical touch to any ride. The car horn controller is made from plastic material, which is wear resistant to use. Stand out from the rest and make a statement with the power of music. This regulator is perfect for commercial activities, helping to promote your brand and engage customers. Specifications: Material:ABS Function: Can make the speaker 10 different sounds Voltage:12-24V Package Includes: 1Set Car Horn Controller note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.