7 siren sounds: Car siren speaker produces 7 loud and clear alarm tones. PA system: Built-in public address system allows you to communicate with others using the included microphone while inside your vehicle. Ideal for fun interactions with friends without revealing your identity. Universal fit: Compatible with any 12V vehicle. Can be installed in cars, trucks, RVs, boats, and other vehicles with 12V DC power. Item type: Multi-tone horn High-quality sound output: Clear and extremely loud audio performance. Includes mounting bracket for easy installation. Features 7 different siren sounds and microphone functionality. Note: - Power supply must match the operating voltage requirement; otherwise, the unit may not function properly. - Ensure correct wiring connections during installation. Incorrect wiring may prevent operation. - Avoid short circuits in the speaker wiring. Product updates may occur. Actual product may vary slightly in appearance or color. Design and color may differ from images. Please consider this before ordering if specific appearance or color is required. Model: Shouting machine Version B - red light version Material: Plastic Color: Black Package contents: 1 x Horn 1 x Shouting machine Note: Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement tolerance: +/- 1-3 cm.