Description: This pair of super tone horns is suitable for most of 12V voltage vehicles, which is adopt premium quality steel and powder coated technology, exquisite workmanship and long service life. It has strong penetration force with loud and clear sound, can draw people's attention from far away, extremely ensures security. What's more, no external air supply needed and easy installation. If you like it! Don't miss it! Features: Adopt steel material and powder coated technology, exquisite workmanship and long service life, harmonious colors and waterproof. Low profile compact circular design, loud and clear sound, can draw people's attention from far away, extremely ensures security. No external air supply needed. Powered by DC 12V, low consumption and energy saving. Comes with 2 universal mounting brackets, easy and simple installation, no additional work needed. Suitable for most of 12V voltage vehicles. Specifications: Material: Steel Color: Red Voltage: DC 12V Current: 4.0A Wattage: 100W Sound Level: 115dB Sound Type: Dual Tone Frequency: 335Hz/400Hz Horn Diameter: 12.3cm/4.84" Horn to Mounting Bracket: 7.2cm/2.83" Package Weight: 695g Fitment: Fits for most of 12V voltage vehicles. Package Included: 1 x pair of Horns 1 x Relay Notes: 1. Please check the size carefully before you purchase. 2. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.