Features: 1.Made of steel alloy and black powder coating, it is durable and does not require external air supply. It is universally suitable for most cars. 2.Super tone horns are particularly suitable for extreme conditions because of their size, powerful electric drive, and great penetration. 3.It provides ultimate performance while combining power, durability and style, making it best for rugged use and off?road driving. 4.Using universal mounting bracket, installation is simple and easy. No additional operations are required. 5.Get your hands on the super tone and you will be sure to draw attention when you hit the knob. With 335Hz bass, 435Hz treble. Specification: Item Type: Horn_x000D_ Material: Steel alloy_x000D_ Standard: 1 Pair_x000D_ Connection: Do not distinguish between positive and negative_x000D_ Diameter: Approx. 12cm/4.72in_x000D_ Power Consumption: 2 x 66W_x000D_ Frequency: 335Hz (bass), 435Hz (treble)_x000D_ Volume Output: 139dB - 170dB_x000D_ Voltage: 12V_x000D_ Applicable: Universal for all 12V cars, trucks, RVs, motorcycles, UTV and ATV models PackageList: 2 x Horn