If you are looking for a siren alarm, then your research is over here. That's because our product can meet your need. Adopted of solid material, practical and durable for long time use, not easy to get deformed and bring you much convenience. Features -Color:Black -Material:Plastic -Size:10.00X10.00X10.00cm/3.93X3.93X3.93in Voltage: 12V Rated power: 15W - This 12V round mouth single-tone horn is a practical speaker that provides clear and loud warning sounds. - The simple installation process makes it suitable for various car brands and models. - The improved design enhances the warning effect of your vehicle, ensuring maximum the road. - The durable plastic material is splashproof and dirtproof, making it suitable for use in harsh environments. - alarm is easy to operate and provides effective warning sounds in emergency situations. Package list: 1 x speaker