Vehicle Horn Speaker System with 8 Melody Options, 12V 24V Power Supply, Adjustable Sound Level Switch Features: Customizable Sound Effects: Offers 8 different sound options, allowing you to personalize your car horn's sound. Adjustable Volume Levels: Each sound effect has an adjustable volume level, providing flexibility for various situations. High-Quality Construction: Made from durable ABS material, designed to withstand daily use and ensure long-lasting performance. Stylish Metal Knob Design: Features a metal knob for a refined look and comfortable, easy control. Easy Installation and Compatibility: Simple to install and compatible with various car horns; supports 12-24V wide voltage input. Note: Installation guide not included. Professional installation is recommended. Please verify the product specifications to ensure compatibility with your vehicle. Product design, color, or appearance may vary slightly due to updates or manufacturing differences. Label text may vary and cannot be customized. Specifications: Number of Sounds: 8 Material: Plastic Color: As shown in images Package Contents: 1 x Musical Electronic Horn Controller Note: Light reflection and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.