Description: Applicable: Perfectly fits for, SUV, Car, Boat or Train, Trumpet measures 4.1 x 15.7 inches. Feature: Will work on any vehicle that has DC power available. Our powerful super loud 150DB sound that cannot be ignored. The sound is strong, loud and good. Material: It is made of high quality stainless steel to ensure maximum strength, durable in all weather conditions and will last for a long time. Must-have item: This is the perfect set to get everyone's attention or deliver the warning you need and complete peace of mind while driving.Easy to use: maintenance-free and no compressor or hoses requiredSpecification:Material: MetalColor: silverSize: 10.5x40cm/4.1x15.7inPower source: 24V Impedance: 5 Omega; Sound level: ge; 105db Operating temperature: -40-80 degrees Celsius Size chart: Size: 10.5 x 4 0cm/4.1 x 15.7 inch Package include: 1 single piece Note: 1. Please allow 1~3cm error due to manual measurement, thanks.2. Due to the difference between different monitors, the image may not reflect the actual color of the item. Please understand.