Dual speakers: This product has two speakers that can be used at the same time to produce louder and more impactful sound. 600db volume: With a volume of 600db, the horn can be heard from a distance, for use on cars, boats and trucks. Electric solenoid valve: The electric solenoid valve ensures that the horn automatically activates when the car is started, which is convenient for the driver. Suitable for a variety of vehicles: The horn is suitable for cars, boats, and trucks, making it a versatile choice for all types of vehicles. Material: Metal colour: Silver Package Contents: 2 x trumpet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.